Re: Equation

[Kevin Cole]

What is with all these single word subject lines?

"How do I highlight an equation?" is much more informative as a
subject. ("in LyX" is probably not necessary when sending to a LyX
Users mailing list. In most cases I would presume you were asking
about how to do it in LyX...)
-- 
lyx-users mailing list
lyx-users@lists.lyx.org
http://lists.lyx.org/mailman/listinfo/lyx-users

Re: Equation

[Ricardo Berlasso]

El jue, 22 sept 2022 a las 1:26, Carlos Knauer ()
escribió:

> How do I highlight an equation in LyX?
>

To change the text color, just select the whole equation and Right
click → Text properties → Customize.

To change the background, you can either follow section 9 of the Math
editor manual you find under Help, or for a quick trick insert your
equation inside a "frame" (Insert → Frame) and play a bit with the frame
options.

Regards,
Ricardo



>
> Carlos Fernando Knauer
> --
> lyx-users mailing list
> lyx-users@lists.lyx.org
> http://lists.lyx.org/mailman/listinfo/lyx-users
>
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lyx-users mailing list
lyx-users@lists.lyx.org
http://lists.lyx.org/mailman/listinfo/lyx-users

Re: Equation Center Alignment Relative to Beamer Frame

[Joel Kulesza]

On Thu, Apr 6, 2017 at 8:32 AM, Paul A. Rubin  wrote:

> So it's true: great minds think alike!


Indeed, I played with negative spaces previously but didn't get anything
useful.  I was hoping there might be a more elegant, e.g., preamble-only,
approach to redefine spacings for equations.  Regardless, I hadn't tried
inserting into the following item but rather before the restart of the
itemization.  If switching environments and negative spacing is the agreed
upon approach I'll see what I can cobble together into a module.

Thanks again,
Joel

Re: Equation Center Alignment Relative to Beamer Frame

[Paul A. Rubin]

On 04/06/2017 10:23 AM, Rich Shepard wrote:

On Thu, 6 Apr 2017, Joel Kulesza wrote:


A minor complaint (and why I didn't go this route originally), the
vertical spacing before/after the second equation is not consistent
because of going between "standard" and "itemize". It's subtle, but is
there a known fix?


Joel,

  What I would do is insert \vspace{Nmm} between the two lines, using a
negative value to decrease the space if necessary.

Rich


So it's true: great minds think alike!

Paul

Re: Equation Center Alignment Relative to Beamer Frame

[Rich Shepard]

On Thu, 6 Apr 2017, Joel Kulesza wrote:


A minor complaint (and why I didn't go this route originally), the
vertical spacing before/after the second equation is not consistent
because of going between "standard" and "itemize". It's subtle, but is
there a known fix?


Joel,

  What I would do is insert \vspace{Nmm} between the two lines, using a
negative value to decrease the space if necessary.

Rich

Re: Equation Center Alignment Relative to Beamer Frame

[Joel Kulesza]

On Wed, Apr 5, 2017 at 2:55 PM, Paul A. Rubin  wrote:

> I don't know if there's a module for this, but it's not hard to do. The
> first key is that you'll want the display mode math in a Standard, rather
> then Itemize (or Enumerate), environment to get it to center properly.
>
> As to what comes next, if it's the last thing in the last item, just
> soldier on. If it's the last thing in what is not the last item, just start
> a new Itemize environment. Where it gets interesting is if the math is in
> the middle of an item. In that case, get out of the item and into a
> standard environment, do the math, and then to resume the item start a new
> Itemize environment, do Insert > Custom Item, and leave the Custom Item
> inset empty (which suppresses the unwanted bullet). I've attached a small
> example.
>
> For math in the middle of an enumeration, the story is almost the same,
> the difference being that you will need to load the Beamer Resumable
> Enumerate module and use an Enumerate-Resume environment after itemize with
> the custom inset to resume enumerating with the next number.
>
> If this is a frequent issue, you might consider writing either a module or
> a macro for it (unless, of course, one already exists).
>

Thank you for your explanation and worked example (I really appreciate it
when people take the time to demonstrate a fix).  A minor complaint (and
why I didn't go this route originally), the vertical spacing before/after
the second equation is not consistent because of going between "standard"
and "itemize".  It's subtle, but is there a known fix?  I'm reluctant to
get into playing with hard-coded spacings in the preamble, but I'm willing
to if that's what it takes.

Once these types of items are hammered out, I'll create a submodule (and
will submit it to be considered for inclusion in future versions).

Thanks again (for this and your help to others that is very useful to learn
from).

Best regards,
Joel

Re: Equation Center Alignment Relative to Beamer Frame

[Paul A. Rubin]

On 04/05/2017 04:20 PM, Joel Kulesza wrote:

Colleagues:

My goal is to have equations on a Beamer frame center-aligned relative 
to the frame and not the indent level of the current environment.


This issue is surprisingly hard to search for (e.g., most discussion 
addresses equation alignment with things such as \align).  One 
approach I located is described at: 
http://tex.stackexchange.com/questions/11606/how-can-i-center-text-math-inside-a-list-environment


Is there built-in (or a suggested implementation of) functionality to 
produce the desired behavior?


Thank you,
Joel
I don't know if there's a module for this, but it's not hard to do. The 
first key is that you'll want the display mode math in a Standard, 
rather then Itemize (or Enumerate), environment to get it to center 
properly.


As to what comes next, if it's the last thing in the last item, just 
soldier on. If it's the last thing in what is not the last item, just 
start a new Itemize environment. Where it gets interesting is if the 
math is in the middle of an item. In that case, get out of the item and 
into a standard environment, do the math, and then to resume the item 
start a new Itemize environment, do Insert > Custom Item, and leave the 
Custom Item inset empty (which suppresses the unwanted bullet). I've 
attached a small example.


For math in the middle of an enumeration, the story is almost the same, 
the difference being that you will need to load the Beamer Resumable 
Enumerate module and use an Enumerate-Resume environment after itemize 
with the custom inset to resume enumerating with the next number.


If this is a frequent issue, you might consider writing either a module 
or a macro for it (unless, of course, one already exists).


Paul


item_math.lyx
Description: application/lyx

Re: Equation numbering variants

[Franci Žižek]

Paul A. Rubin  msu.edu> writes:
 
> I'm going to assume that you want the marked equations not to interrupt the
> equation numbering scheme. In other words, you want (2.3.3)DELTA consecutive
> between (2.3.2) and (2.3.4), rather than having both a (2.3.3) and a
> (2.3.3)DELTA.
> 
> Create a math macro (Insert > Math > Macro), name it something like \mytag,
> and fill the TeX code slot with
> 
> \stepcounter{equation}\tag{\theequation\Delta}
> 
> and the LyX display slot with ?\Delta?. There's nothing sacred about what
> goes in the LyX slot; feel free to change it at will. More about that in a
> second.
> 
> Then, in any equation you want to flag, just type \mytag in the equation
> body. LyX will display ?\Delta? (or whatever you substituted) in the
> equation, and will annotate the equation number correctly in the output. If
> you leave the LyX portion of the macro empty, LyX will expand the macro
> inside the equation. That still works, but it makes for some remarkably ugly
> equations in the LyX GUI.
> 
> Paul
> 

Thank you Paul!

I tried it and it works good. I see what you mean with the Lyx portion of
the macro - it is only for my reference.

But the DELTA is inside the round brackets. Is there a way to have it
outside the brackets?

Franci

Re: Equation numbering variants

[Guillaume Munch]

Le 16/12/2015 23:05, Franci Žižek a écrit :

Paul A. Rubin  msu.edu> writes:


I'm going to assume that you want the marked equations not to interrupt the
equation numbering scheme. In other words, you want (2.3.3)DELTA consecutive
between (2.3.2) and (2.3.4), rather than having both a (2.3.3) and a
(2.3.3)DELTA.

Create a math macro (Insert > Math > Macro), name it something like \mytag,
and fill the TeX code slot with

\stepcounter{equation}\tag{\theequation\Delta}

and the LyX display slot with ?\Delta?. There's nothing sacred about what
goes in the LyX slot; feel free to change it at will. More about that in a
second.

Then, in any equation you want to flag, just type \mytag in the equation
body. LyX will display ?\Delta? (or whatever you substituted) in the
equation, and will annotate the equation number correctly in the output. If
you leave the LyX portion of the macro empty, LyX will expand the macro
inside the equation. That still works, but it makes for some remarkably ugly
equations in the LyX GUI.

Paul



Thank you Paul!

I tried it and it works good. I see what you mean with the Lyx portion of
the macro - it is only for my reference.

But the DELTA is inside the round brackets. Is there a way to have it
outside the brackets?



Use \tag* instead: \stepcounter{equation}\tag*{(\theequation)\Delta}

Guillaume

Re: Equation numbering variants

[Franci Žižek]

> Use \tag* instead: \stepcounter{equation}\tag*{(\theequation)\Delta}
> 
> Guillaume
> 

Beautiful! Thank you Guillaume!

Best regards

Re: Equation numbering variants

[Paul A . Rubin]

Franci Žižek  gmail.com> writes:

> 
> Hi
> 
> Can someone give me a hint how I could create a different equation numbering
> variant?
> 
> Currently all my equations are numbered like: (2.3.2)
> 
> For some select equations I would like this to change to: (2.3.3)Δ
> The counting is continuous, some equations just have an additional DELTA at
> the end.
> 
> Any help is appreciated.
> 
> Franci Žižek

I'm going to assume that you want the marked equations not to interrupt the
equation numbering scheme. In other words, you want (2.3.3)DELTA consecutive
between (2.3.2) and (2.3.4), rather than having both a (2.3.3) and a
(2.3.3)DELTA.

Create a math macro (Insert > Math > Macro), name it something like \mytag,
and fill the TeX code slot with

\stepcounter{equation}\tag{\theequation\Delta}

and the LyX display slot with ?\Delta?. There's nothing sacred about what
goes in the LyX slot; feel free to change it at will. More about that in a
second.

Then, in any equation you want to flag, just type \mytag in the equation
body. LyX will display ?\Delta? (or whatever you substituted) in the
equation, and will annotate the equation number correctly in the output. If
you leave the LyX portion of the macro empty, LyX will expand the macro
inside the equation. That still works, but it makes for some remarkably ugly
equations in the LyX GUI.

Paul

Re: Equation editor (was Bounding box for pstricks graphics with LyX)

[Guenter Milde]

On 2012-01-16, Andrew Parsloe wrote:

 I've now tried your equation editor/picture cropper at 
 http://www.lyx.org/trac/ticket/7839 using GSview for postscript and 
 Acroreader for pdf.

 For both template files, EPS.lyx and PDF-cropped.lyx, I had to reduce 
 the \lyxformat from 416 to 413 for them to be accepted by LyX 2.0.2 on 
 my system.

The templates were written with the development version. For the Wiki,
downgraded variants that work with the release version would be better,
indeed.

 For both ps and pdf I tried an equation (Pythagoras' theorem, 
 a^2+b^2=c^2) and a pstricks graphic (a labelled right-angled triangle).

 Postscript: in GSview, the equation is cropped just right. That's neat. 
 I like it. The triangle however is cropped too severely, so that the 
 labels for the vertices and two of the sides are largely cropped out of 
 the picture. The cropping is targeted at the geometric stuff as if the 
 text stuff isn't there. 

This seems to be a limitation of ps2eps.
AFAIK, there is an alternative converter that works around this issue.
(But I don't know the details now.)

 PDF: Compiling with pdflatex, which I presume is what is intended, I get 
 an error message in LyX at the cropping stage:

 An error occurred while running: pdfcrop equation.pdf tmpfile.out

 Looking in the temporary directory shows the aux, log, tex, and 
 tex.dep-pdf files. The log file claims Output written on equation.pdf 
 but there is no equation.pdf there.


Strange.

An equation works here.

Just to be sure: do you know that pstricks does not work with pdflatex?

Could you try with a new document and ViewOther formatsPDF (pdfcrop)?

If this fails, export an example to PDF and try to crop with pdfcrop on the
command line.

Günter

Re: Equation editor (was Bounding box for pstricks graphics with LyX)

[Guenter Milde]

On 2012-01-16, Andrew Parsloe wrote:

 I've now tried your equation editor/picture cropper at 
 http://www.lyx.org/trac/ticket/7839 using GSview for postscript and 
 Acroreader for pdf.

 For both template files, EPS.lyx and PDF-cropped.lyx, I had to reduce 
 the \lyxformat from 416 to 413 for them to be accepted by LyX 2.0.2 on 
 my system.

The templates were written with the development version. For the Wiki,
downgraded variants that work with the release version would be better,
indeed.

 For both ps and pdf I tried an equation (Pythagoras' theorem, 
 a^2+b^2=c^2) and a pstricks graphic (a labelled right-angled triangle).

 Postscript: in GSview, the equation is cropped just right. That's neat. 
 I like it. The triangle however is cropped too severely, so that the 
 labels for the vertices and two of the sides are largely cropped out of 
 the picture. The cropping is targeted at the geometric stuff as if the 
 text stuff isn't there. 

This seems to be a limitation of ps2eps.
AFAIK, there is an alternative converter that works around this issue.
(But I don't know the details now.)

 PDF: Compiling with pdflatex, which I presume is what is intended, I get 
 an error message in LyX at the cropping stage:

 An error occurred while running: pdfcrop equation.pdf tmpfile.out

 Looking in the temporary directory shows the aux, log, tex, and 
 tex.dep-pdf files. The log file claims Output written on equation.pdf 
 but there is no equation.pdf there.


Strange.

An equation works here.

Just to be sure: do you know that pstricks does not work with pdflatex?

Could you try with a new document and ViewOther formatsPDF (pdfcrop)?

If this fails, export an example to PDF and try to crop with pdfcrop on the
command line.

Günter

Re: "Equation editor" (was Bounding box for pstricks graphics with LyX)

[Guenter Milde]

On 2012-01-16, Andrew Parsloe wrote:

> I've now tried your "equation editor/picture cropper" at 
> http://www.lyx.org/trac/ticket/7839 using GSview for postscript and 
> Acroreader for pdf.

> For both template files, EPS.lyx and PDF-cropped.lyx, I had to reduce 
> the \lyxformat from 416 to 413 for them to be accepted by LyX 2.0.2 on 
> my system.

The templates were written with the development version. For the Wiki,
"downgraded" variants that work with the release version would be better,
indeed.

> For both ps and pdf I tried an equation (Pythagoras' theorem, 
> a^2+b^2=c^2) and a pstricks graphic (a labelled right-angled triangle).

> Postscript: in GSview, the equation is cropped just right. That's neat. 
> I like it. The triangle however is cropped too severely, so that the 
> labels for the vertices and two of the sides are largely cropped out of 
> the picture. The cropping is targeted at the geometric stuff as if the 
> text stuff isn't there. 

This seems to be a limitation of ps2eps.
AFAIK, there is an alternative converter that works around this issue.
(But I don't know the details now.)

> PDF: Compiling with pdflatex, which I presume is what is intended, I get 
> an error message in LyX at the cropping stage:

> An error occurred while running: pdfcrop "equation.pdf" "tmpfile.out"

> Looking in the temporary directory shows the aux, log, tex, and 
> tex.dep-pdf files. The log file claims "Output written on equation.pdf" 
> but there is no equation.pdf there.


Strange.

An equation works here.

Just to be sure: do you know that pstricks does not work with pdflatex?

Could you try with a new document and View>Other formats>PDF (pdfcrop)?

If this fails, export an example to PDF and try to crop with pdfcrop on the
command line.

Günter

Re: Equation annotations in a multiline equation

[Richard Heck]

On 10/02/2011 10:54 PM, David L. Johnson wrote:

On 10/02/2011 08:27 PM, Abiel Reinhart wrote:

I'm trying to understand how I can add annotations that sit to the
right of each line of a multiline equation. For example, in a proof,
such annotations might provide justification for each step in the
proof.

In pure LaTeX I could accomplish this like so:

\begin{align*}
h(x)= \int_a^b{[f(x)+g(x)]dx}  \text{(Some annotation)}\\
= \int_a^b{y(x)dx}  \text{(Another annotation)}
\end{align*}'

However, I'm not sure how to achieve the same effect in LyX.

Abiel
Try, within an aligned environment, entering a standard inline math 
environment.  This will give you a blue rectangle, and if you type 
something there, it will be in standard Roman text.  It is a \text{} 
environment.   Alternately, heck, you can type  \text  and hit the 
Enter key; you will then be in the text environment you want, but I 
have enter an inline math environment linked to F10, so I just hit 
F10.  You can leave that environment by moving the cursor.


This is normally bound to Ctrl-M. In math, it has the effect of 
introducing a text box.


Richard

Re: Equation annotations in a multiline equation

[Abiel Reinhart]

I'm able to type plain text as you've suggested but I'm still unable
to get the alignment and spacing right. I can  type text to the right
of an equation on a given line, spacing it out from the equation using
something like \quad. However, then the annotations from different
lines of the equation won't necessarily align. Alternately I can add a
column to the aligned environment. That takes care of horizontal
alignment but unfortunately then I run into problems with spacing, as
there is little spacing between the annotation and the math part of
the equation. This can sometimes be solved by adding a blank column to
the aligned environment, but in other cases the blank column doesn't
seem to do much and may in fact affect the alignment in other columns.

On Mon, Oct 3, 2011 at 11:05 AM, Richard Heck rgh...@comcast.net wrote:
 On 10/02/2011 10:54 PM, David L. Johnson wrote:

 On 10/02/2011 08:27 PM, Abiel Reinhart wrote:

 I'm trying to understand how I can add annotations that sit to the
 right of each line of a multiline equation. For example, in a proof,
 such annotations might provide justification for each step in the
 proof.

 In pure LaTeX I could accomplish this like so:

 \begin{align*}
    h(x)= \int_a^b{[f(x)+g(x)]dx}  \text{(Some annotation)}\\
 = \int_a^b{y(x)dx}  \text{(Another annotation)}
 \end{align*}'

 However, I'm not sure how to achieve the same effect in LyX.

 Abiel

 Try, within an aligned environment, entering a standard inline math
 environment.  This will give you a blue rectangle, and if you type something
 there, it will be in standard Roman text.  It is a \text{} environment.
 Alternately, heck, you can type  \text  and hit the Enter key; you will then
 be in the text environment you want, but I have enter an inline math
 environment linked to F10, so I just hit F10.  You can leave that
 environment by moving the cursor.

 This is normally bound to Ctrl-M. In math, it has the effect of introducing
 a text box.

 Richard

Re: Equation annotations in a multiline equation

[Richard Heck]

On 10/03/2011 11:23 AM, Abiel Reinhart wrote:

I'm able to type plain text as you've suggested but I'm still unable
to get the alignment and spacing right. I can  type text to the right
of an equation on a given line, spacing it out from the equation using
something like \quad. However, then the annotations from different
lines of the equation won't necessarily align. Alternately I can add a
column to the aligned environment. That takes care of horizontal
alignment but unfortunately then I run into problems with spacing, as
there is little spacing between the annotation and the math part of
the equation. This can sometimes be solved by adding a blank column to
the aligned environment, but in other cases the blank column doesn't
seem to do much and may in fact affect the alignment in other columns.

All of these things can happen, to be sure. But won't they happen with the
plain LaTeX you mentioned


\begin{align*}
h(x)= \int_a^b{[f(x)+g(x)]dx}\text{(Some annotation)}\\
= \int_a^b{y(x)dx}\text{(Another annotation)}
\end{align*}



just as well?

Try this: Copy that very text and paste it into LyX (as plain text). Now 
highlight

that same text and hit Ctrl-M. Look at ViewSource to see what LyX will now
generate.

Richard

Re: Equation annotations in a multiline equation

[Abiel Reinhart]

Thanks, after pasting in the text and then examining it I was able to
figure out the correct approach. It appears my earlier alignment
difficulty stemmed from placing the equals sign in its own column. Now
I create a four-column structure in the align environment, with
equation= in the first column, equation in the second column, nothing
in the third column, and the annotation in the last column. This gets
me exactly what I had in pure LaTeX, which makes sense.

On Mon, Oct 3, 2011 at 11:30 AM, Richard Heck rgh...@comcast.net wrote:
 On 10/03/2011 11:23 AM, Abiel Reinhart wrote:

 I'm able to type plain text as you've suggested but I'm still unable
 to get the alignment and spacing right. I can  type text to the right
 of an equation on a given line, spacing it out from the equation using
 something like \quad. However, then the annotations from different
 lines of the equation won't necessarily align. Alternately I can add a
 column to the aligned environment. That takes care of horizontal
 alignment but unfortunately then I run into problems with spacing, as
 there is little spacing between the annotation and the math part of
 the equation. This can sometimes be solved by adding a blank column to
 the aligned environment, but in other cases the blank column doesn't
 seem to do much and may in fact affect the alignment in other columns.

 All of these things can happen, to be sure. But won't they happen with the
 plain LaTeX you mentioned

 \begin{align*}
    h(x)= \int_a^b{[f(x)+g(x)]dx}    \text{(Some annotation)}\\
 = \int_a^b{y(x)dx}    \text{(Another annotation)}
 \end{align*}


 just as well?

 Try this: Copy that very text and paste it into LyX (as plain text). Now
 highlight
 that same text and hit Ctrl-M. Look at ViewSource to see what LyX will now
 generate.

 Richard

Re: Equation annotations in a multiline equation

[David L. Johnson]

On 10/03/2011 11:45 AM, Abiel Reinhart wrote:

Thanks, after pasting in the text and then examining it I was able to
figure out the correct approach. It appears my earlier alignment
difficulty stemmed from placing the equals sign in its own column. Now
I create a four-column structure in the align environment, with
equation= in the first column, equation in the second column, nothing
in the third column, and the annotation in the last column. This gets
me exactly what I had in pure LaTeX, which makes sense.
The problem really is in the default alignments that AMS-LaTeX uses 
here.  I don't know offhand what the rules are supposed to be, but the 
problem is that some of the columns are right-justified, and others are 
left-justified.  I'm sure that the algorithms are available somewhere.  
You placing the = in the first column, rather than in a column by 
itself, changed the count of columns, and thus the justification.


The justification is different in LyX than it is in the output, which 
might be something to worry about in the future.


--

David L. Johnson

The lottery is a tax on those who fail to understand mathematics.

Re: Equation annotations in a multiline equation

[Julien Rioux]

On 03/10/2011 10:25 PM, David L. Johnson wrote:

The justification is different in LyX than it is in the output, which
might be something to worry about in the future.


I also have found that the display in LyX of the alignment of math 
columns can get confused, although when you close and reopen the file it 
will be correct. We should fix this.


--
Julien

Re: Equation annotations in a multiline equation

[Richard Heck]

On 10/02/2011 10:54 PM, David L. Johnson wrote:

On 10/02/2011 08:27 PM, Abiel Reinhart wrote:

I'm trying to understand how I can add annotations that sit to the
right of each line of a multiline equation. For example, in a proof,
such annotations might provide justification for each step in the
proof.

In pure LaTeX I could accomplish this like so:

\begin{align*}
h(x)= \int_a^b{[f(x)+g(x)]dx}  \text{(Some annotation)}\\
= \int_a^b{y(x)dx}  \text{(Another annotation)}
\end{align*}'

However, I'm not sure how to achieve the same effect in LyX.

Abiel
Try, within an aligned environment, entering a standard inline math 
environment.  This will give you a blue rectangle, and if you type 
something there, it will be in standard Roman text.  It is a \text{} 
environment.   Alternately, heck, you can type  \text  and hit the 
Enter key; you will then be in the text environment you want, but I 
have enter an inline math environment linked to F10, so I just hit 
F10.  You can leave that environment by moving the cursor.


This is normally bound to Ctrl-M. In math, it has the effect of 
introducing a text box.


Richard

Re: Equation annotations in a multiline equation

[Abiel Reinhart]

I'm able to type plain text as you've suggested but I'm still unable
to get the alignment and spacing right. I can  type text to the right
of an equation on a given line, spacing it out from the equation using
something like \quad. However, then the annotations from different
lines of the equation won't necessarily align. Alternately I can add a
column to the aligned environment. That takes care of horizontal
alignment but unfortunately then I run into problems with spacing, as
there is little spacing between the annotation and the math part of
the equation. This can sometimes be solved by adding a blank column to
the aligned environment, but in other cases the blank column doesn't
seem to do much and may in fact affect the alignment in other columns.

On Mon, Oct 3, 2011 at 11:05 AM, Richard Heck rgh...@comcast.net wrote:
 On 10/02/2011 10:54 PM, David L. Johnson wrote:

 On 10/02/2011 08:27 PM, Abiel Reinhart wrote:

 I'm trying to understand how I can add annotations that sit to the
 right of each line of a multiline equation. For example, in a proof,
 such annotations might provide justification for each step in the
 proof.

 In pure LaTeX I could accomplish this like so:

 \begin{align*}
    h(x)= \int_a^b{[f(x)+g(x)]dx}  \text{(Some annotation)}\\
 = \int_a^b{y(x)dx}  \text{(Another annotation)}
 \end{align*}'

 However, I'm not sure how to achieve the same effect in LyX.

 Abiel

 Try, within an aligned environment, entering a standard inline math
 environment.  This will give you a blue rectangle, and if you type something
 there, it will be in standard Roman text.  It is a \text{} environment.
 Alternately, heck, you can type  \text  and hit the Enter key; you will then
 be in the text environment you want, but I have enter an inline math
 environment linked to F10, so I just hit F10.  You can leave that
 environment by moving the cursor.

 This is normally bound to Ctrl-M. In math, it has the effect of introducing
 a text box.

 Richard

Re: Equation annotations in a multiline equation

[Richard Heck]

On 10/03/2011 11:23 AM, Abiel Reinhart wrote:

I'm able to type plain text as you've suggested but I'm still unable
to get the alignment and spacing right. I can  type text to the right
of an equation on a given line, spacing it out from the equation using
something like \quad. However, then the annotations from different
lines of the equation won't necessarily align. Alternately I can add a
column to the aligned environment. That takes care of horizontal
alignment but unfortunately then I run into problems with spacing, as
there is little spacing between the annotation and the math part of
the equation. This can sometimes be solved by adding a blank column to
the aligned environment, but in other cases the blank column doesn't
seem to do much and may in fact affect the alignment in other columns.

All of these things can happen, to be sure. But won't they happen with the
plain LaTeX you mentioned


\begin{align*}
h(x)= \int_a^b{[f(x)+g(x)]dx}\text{(Some annotation)}\\
= \int_a^b{y(x)dx}\text{(Another annotation)}
\end{align*}



just as well?

Try this: Copy that very text and paste it into LyX (as plain text). Now 
highlight

that same text and hit Ctrl-M. Look at ViewSource to see what LyX will now
generate.

Richard

Re: Equation annotations in a multiline equation

[Abiel Reinhart]

Thanks, after pasting in the text and then examining it I was able to
figure out the correct approach. It appears my earlier alignment
difficulty stemmed from placing the equals sign in its own column. Now
I create a four-column structure in the align environment, with
equation= in the first column, equation in the second column, nothing
in the third column, and the annotation in the last column. This gets
me exactly what I had in pure LaTeX, which makes sense.

On Mon, Oct 3, 2011 at 11:30 AM, Richard Heck rgh...@comcast.net wrote:
 On 10/03/2011 11:23 AM, Abiel Reinhart wrote:

 I'm able to type plain text as you've suggested but I'm still unable
 to get the alignment and spacing right. I can  type text to the right
 of an equation on a given line, spacing it out from the equation using
 something like \quad. However, then the annotations from different
 lines of the equation won't necessarily align. Alternately I can add a
 column to the aligned environment. That takes care of horizontal
 alignment but unfortunately then I run into problems with spacing, as
 there is little spacing between the annotation and the math part of
 the equation. This can sometimes be solved by adding a blank column to
 the aligned environment, but in other cases the blank column doesn't
 seem to do much and may in fact affect the alignment in other columns.

 All of these things can happen, to be sure. But won't they happen with the
 plain LaTeX you mentioned

 \begin{align*}
    h(x)= \int_a^b{[f(x)+g(x)]dx}    \text{(Some annotation)}\\
 = \int_a^b{y(x)dx}    \text{(Another annotation)}
 \end{align*}


 just as well?

 Try this: Copy that very text and paste it into LyX (as plain text). Now
 highlight
 that same text and hit Ctrl-M. Look at ViewSource to see what LyX will now
 generate.

 Richard

Re: Equation annotations in a multiline equation

[David L. Johnson]

On 10/03/2011 11:45 AM, Abiel Reinhart wrote:

Thanks, after pasting in the text and then examining it I was able to
figure out the correct approach. It appears my earlier alignment
difficulty stemmed from placing the equals sign in its own column. Now
I create a four-column structure in the align environment, with
equation= in the first column, equation in the second column, nothing
in the third column, and the annotation in the last column. This gets
me exactly what I had in pure LaTeX, which makes sense.
The problem really is in the default alignments that AMS-LaTeX uses 
here.  I don't know offhand what the rules are supposed to be, but the 
problem is that some of the columns are right-justified, and others are 
left-justified.  I'm sure that the algorithms are available somewhere.  
You placing the = in the first column, rather than in a column by 
itself, changed the count of columns, and thus the justification.


The justification is different in LyX than it is in the output, which 
might be something to worry about in the future.


--

David L. Johnson

The lottery is a tax on those who fail to understand mathematics.

Re: Equation annotations in a multiline equation

[Julien Rioux]

On 03/10/2011 10:25 PM, David L. Johnson wrote:

The justification is different in LyX than it is in the output, which
might be something to worry about in the future.


I also have found that the display in LyX of the alignment of math 
columns can get confused, although when you close and reopen the file it 
will be correct. We should fix this.


--
Julien

Re: Equation annotations in a multiline equation

[Richard Heck]

On 10/02/2011 10:54 PM, David L. Johnson wrote:

On 10/02/2011 08:27 PM, Abiel Reinhart wrote:

I'm trying to understand how I can add annotations that sit to the
right of each line of a multiline equation. For example, in a proof,
such annotations might provide justification for each step in the
proof.

In pure LaTeX I could accomplish this like so:

\begin{align*}
h(x)&= \int_a^b{[f(x)+g(x)]dx}&&  \text{(Some annotation)}\\
&= \int_a^b{y(x)dx}&&  \text{(Another annotation)}
\end{align*}'

However, I'm not sure how to achieve the same effect in LyX.

Abiel
Try, within an aligned environment, "entering" a standard inline math 
environment.  This will give you a blue rectangle, and if you type 
something there, it will be in standard Roman text.  It is a \text{} 
environment.   Alternately, heck, you can type  \text  and hit the 
Enter key; you will then be in the text environment you want, but I 
have "enter an inline math environment" linked to F10, so I just hit 
F10.  You can leave that environment by moving the cursor.


This is normally bound to Ctrl-M. In math, it has the effect of 
introducing a text box.


Richard

Re: Equation annotations in a multiline equation

[Abiel Reinhart]

I'm able to type plain text as you've suggested but I'm still unable
to get the alignment and spacing right. I can  type text to the right
of an equation on a given line, spacing it out from the equation using
something like \quad. However, then the annotations from different
lines of the equation won't necessarily align. Alternately I can add a
column to the aligned environment. That takes care of horizontal
alignment but unfortunately then I run into problems with spacing, as
there is little spacing between the annotation and the math part of
the equation. This can sometimes be solved by adding a blank column to
the aligned environment, but in other cases the blank column doesn't
seem to do much and may in fact affect the alignment in other columns.

On Mon, Oct 3, 2011 at 11:05 AM, Richard Heck  wrote:
> On 10/02/2011 10:54 PM, David L. Johnson wrote:
>>
>> On 10/02/2011 08:27 PM, Abiel Reinhart wrote:
>>>
>>> I'm trying to understand how I can add annotations that sit to the
>>> right of each line of a multiline equation. For example, in a proof,
>>> such annotations might provide justification for each step in the
>>> proof.
>>>
>>> In pure LaTeX I could accomplish this like so:
>>>
>>> \begin{align*}
>>>    h(x)&= \int_a^b{[f(x)+g(x)]dx}&&  \text{(Some annotation)}\\
>>> &= \int_a^b{y(x)dx}&&  \text{(Another annotation)}
>>> \end{align*}'
>>>
>>> However, I'm not sure how to achieve the same effect in LyX.
>>>
>>> Abiel
>>
>> Try, within an aligned environment, "entering" a standard inline math
>> environment.  This will give you a blue rectangle, and if you type something
>> there, it will be in standard Roman text.  It is a \text{} environment.
>> Alternately, heck, you can type  \text  and hit the Enter key; you will then
>> be in the text environment you want, but I have "enter an inline math
>> environment" linked to F10, so I just hit F10.  You can leave that
>> environment by moving the cursor.
>>
> This is normally bound to Ctrl-M. In math, it has the effect of introducing
> a text box.
>
> Richard
>
>
>

Re: Equation annotations in a multiline equation

[Richard Heck]

On 10/03/2011 11:23 AM, Abiel Reinhart wrote:

I'm able to type plain text as you've suggested but I'm still unable
to get the alignment and spacing right. I can  type text to the right
of an equation on a given line, spacing it out from the equation using
something like \quad. However, then the annotations from different
lines of the equation won't necessarily align. Alternately I can add a
column to the aligned environment. That takes care of horizontal
alignment but unfortunately then I run into problems with spacing, as
there is little spacing between the annotation and the math part of
the equation. This can sometimes be solved by adding a blank column to
the aligned environment, but in other cases the blank column doesn't
seem to do much and may in fact affect the alignment in other columns.

All of these things can happen, to be sure. But won't they happen with the
plain LaTeX you mentioned


\begin{align*}
h(x)&= \int_a^b{[f(x)+g(x)]dx}&&\text{(Some annotation)}\\
&= \int_a^b{y(x)dx}&&\text{(Another annotation)}
\end{align*}



just as well?

Try this: Copy that very text and paste it into LyX (as plain text). Now 
highlight

that same text and hit Ctrl-M. Look at View>Source to see what LyX will now
generate.

Richard

Re: Equation annotations in a multiline equation

[Abiel Reinhart]

Thanks, after pasting in the text and then examining it I was able to
figure out the correct approach. It appears my earlier alignment
difficulty stemmed from placing the equals sign in its own column. Now
I create a four-column structure in the align environment, with
equation= in the first column, equation in the second column, nothing
in the third column, and the annotation in the last column. This gets
me exactly what I had in pure LaTeX, which makes sense.

On Mon, Oct 3, 2011 at 11:30 AM, Richard Heck  wrote:
> On 10/03/2011 11:23 AM, Abiel Reinhart wrote:
>>
>> I'm able to type plain text as you've suggested but I'm still unable
>> to get the alignment and spacing right. I can  type text to the right
>> of an equation on a given line, spacing it out from the equation using
>> something like \quad. However, then the annotations from different
>> lines of the equation won't necessarily align. Alternately I can add a
>> column to the aligned environment. That takes care of horizontal
>> alignment but unfortunately then I run into problems with spacing, as
>> there is little spacing between the annotation and the math part of
>> the equation. This can sometimes be solved by adding a blank column to
>> the aligned environment, but in other cases the blank column doesn't
>> seem to do much and may in fact affect the alignment in other columns.
>
> All of these things can happen, to be sure. But won't they happen with the
> plain LaTeX you mentioned
>
>> \begin{align*}
>>    h(x)&= \int_a^b{[f(x)+g(x)]dx}&&    \text{(Some annotation)}\\
>> &= \int_a^b{y(x)dx}&&    \text{(Another annotation)}
>> \end{align*}
>>
>
> just as well?
>
> Try this: Copy that very text and paste it into LyX (as plain text). Now
> highlight
> that same text and hit Ctrl-M. Look at View>Source to see what LyX will now
> generate.
>
> Richard
>
>

Re: Equation annotations in a multiline equation

[David L. Johnson]

On 10/03/2011 11:45 AM, Abiel Reinhart wrote:

Thanks, after pasting in the text and then examining it I was able to
figure out the correct approach. It appears my earlier alignment
difficulty stemmed from placing the equals sign in its own column. Now
I create a four-column structure in the align environment, with
equation= in the first column, equation in the second column, nothing
in the third column, and the annotation in the last column. This gets
me exactly what I had in pure LaTeX, which makes sense.
The problem really is in the default alignments that AMS-LaTeX uses 
here.  I don't know offhand what the rules are supposed to be, but the 
problem is that some of the columns are right-justified, and others are 
left-justified.  I'm sure that the algorithms are available somewhere.  
You placing the = in the first column, rather than in a column by 
itself, changed the count of columns, and thus the justification.


The justification is different in LyX than it is in the output, which 
might be something to worry about in the future.


--

David L. Johnson

The lottery is a tax on those who fail to understand mathematics.

Re: Equation annotations in a multiline equation

[Julien Rioux]

On 03/10/2011 10:25 PM, David L. Johnson wrote:

The justification is different in LyX than it is in the output, which
might be something to worry about in the future.


I also have found that the display in LyX of the alignment of math 
columns can get confused, although when you close and reopen the file it 
will be correct. We should fix this.


--
Julien

Re: Equation annotations in a multiline equation

[David L. Johnson]

On 10/02/2011 08:27 PM, Abiel Reinhart wrote:

I'm trying to understand how I can add annotations that sit to the
right of each line of a multiline equation. For example, in a proof,
such annotations might provide justification for each step in the
proof.

In pure LaTeX I could accomplish this like so:

\begin{align*}
h(x)= \int_a^b{[f(x)+g(x)]dx}  \text{(Some annotation)}\\
= \int_a^b{y(x)dx}  \text{(Another annotation)}
\end{align*}'

However, I'm not sure how to achieve the same effect in LyX.

Abiel
Try, within an aligned environment, entering a standard inline math 
environment.  This will give you a blue rectangle, and if you type 
something there, it will be in standard Roman text.  It is a \text{} 
environment.   Alternately, heck, you can type  \text  and hit the Enter 
key; you will then be in the text environment you want, but I have 
enter an inline math environment linked to F10, so I just hit F10.  
You can leave that environment by moving the cursor.


--

David L. Johnson

As far as the laws of mathematics refer to reality, they are not
certain, and as far as they are certain, they do not refer to reality.
-- Albert Einstein

Re: Equation annotations in a multiline equation

[David L. Johnson]

On 10/02/2011 08:27 PM, Abiel Reinhart wrote:

I'm trying to understand how I can add annotations that sit to the
right of each line of a multiline equation. For example, in a proof,
such annotations might provide justification for each step in the
proof.

In pure LaTeX I could accomplish this like so:

\begin{align*}
h(x)= \int_a^b{[f(x)+g(x)]dx}  \text{(Some annotation)}\\
= \int_a^b{y(x)dx}  \text{(Another annotation)}
\end{align*}'

However, I'm not sure how to achieve the same effect in LyX.

Abiel
Try, within an aligned environment, entering a standard inline math 
environment.  This will give you a blue rectangle, and if you type 
something there, it will be in standard Roman text.  It is a \text{} 
environment.   Alternately, heck, you can type  \text  and hit the Enter 
key; you will then be in the text environment you want, but I have 
enter an inline math environment linked to F10, so I just hit F10.  
You can leave that environment by moving the cursor.


--

David L. Johnson

As far as the laws of mathematics refer to reality, they are not
certain, and as far as they are certain, they do not refer to reality.
-- Albert Einstein

Re: Equation annotations in a multiline equation

[David L. Johnson]

On 10/02/2011 08:27 PM, Abiel Reinhart wrote:

I'm trying to understand how I can add annotations that sit to the
right of each line of a multiline equation. For example, in a proof,
such annotations might provide justification for each step in the
proof.

In pure LaTeX I could accomplish this like so:

\begin{align*}
h(x)&= \int_a^b{[f(x)+g(x)]dx}&&  \text{(Some annotation)}\\
&= \int_a^b{y(x)dx}&&  \text{(Another annotation)}
\end{align*}'

However, I'm not sure how to achieve the same effect in LyX.

Abiel
Try, within an aligned environment, "entering" a standard inline math 
environment.  This will give you a blue rectangle, and if you type 
something there, it will be in standard Roman text.  It is a \text{} 
environment.   Alternately, heck, you can type  \text  and hit the Enter 
key; you will then be in the text environment you want, but I have 
"enter an inline math environment" linked to F10, so I just hit F10.  
You can leave that environment by moving the cursor.


--

David L. Johnson

As far as the laws of mathematics refer to reality, they are not
certain, and as far as they are certain, they do not refer to reality.
-- Albert Einstein

Re: Equation numbering

[Ignacio García]

alpking alpking at hotmail.com writes:

 
 
 Hello,
 
 I'm currently writing my master's thesis with Lyx and I have a question :
 
 Is it possible to number the equations without the number of the section
 before ? For now, when I insert a new numbered formula, it is numbered like
 that : (4.13), meaning the 13th equation in the fourth section. But I want
 it in the following format : (13), meaning the 13th equation of all the
 document.
 
 For info, I use Lyx 1.6.6.1 and the AMSmath package.
 
 Thanks in advance for your help

See you, please, if the module Number Equations by Section
is loaded in Document Settings. Then you can try to delete it.

Some document classes load some modules by default. Maybe you are using one
of these classes, e.g. book(AMS)

You can find a detailed info about Formula Numbering in the section 19
of the Math manual in the Help menu

Regards
Ignacio

Re: Equation numbering

[Ignacio García]

alpking alpking at hotmail.com writes:

 
 
 Hello,
 
 I'm currently writing my master's thesis with Lyx and I have a question :
 
 Is it possible to number the equations without the number of the section
 before ? For now, when I insert a new numbered formula, it is numbered like
 that : (4.13), meaning the 13th equation in the fourth section. But I want
 it in the following format : (13), meaning the 13th equation of all the
 document.
 
 For info, I use Lyx 1.6.6.1 and the AMSmath package.
 
 Thanks in advance for your help

See you, please, if the module Number Equations by Section
is loaded in Document Settings. Then you can try to delete it.

Some document classes load some modules by default. Maybe you are using one
of these classes, e.g. book(AMS)

You can find a detailed info about Formula Numbering in the section 19
of the Math manual in the Help menu

Regards
Ignacio

Re: Equation numbering

[Ignacio García]

alpking  hotmail.com> writes:

> 
> 
> Hello,
> 
> I'm currently writing my master's thesis with Lyx and I have a question :
> 
> Is it possible to number the equations without the number of the section
> before ? For now, when I insert a new numbered formula, it is numbered like
> that : (4.13), meaning the 13th equation in the fourth section. But I want
> it in the following format : (13), meaning the 13th equation of all the
> document.
> 
> For info, I use Lyx 1.6.6.1 and the AMSmath package.
> 
> Thanks in advance for your help

See you, please, if the module "Number Equations by Section"
is loaded in "Document Settings". Then you can try to delete it.

Some document classes load some modules by default. Maybe you are using one
of these classes, e.g. book(AMS)

You can find a detailed info about Formula Numbering in the section 19
of the Math manual in the Help menu

Regards
Ignacio

Re: Equation in brackets too long

[Paul A. Rubin]

On 6/15/2010 6:41 AM, Michael Dzjaparidze wrote:

Hi,

I'm very new to Lyx and I have a problem I can't solve on my own. I've
searched on the internet for a solution, but could not really find it,
although it is pretty obvious I think.

The problem is that I have several long mathematical expressions in
brackets that don't get displayed fully (doesn't jump to a newline
automatically). Is there a way to force a newline inside a bracket somehow?

Thanks in advance,

Michael



Have a look at Help  Math sections 18.1.3 and 18.1.4.

/Paul

Re: Equation in brackets too long

[Richard Heck]

On 06/15/2010 12:39 PM, Michael Dzjaparidze wrote:

Hi Richard,

I hope you dont mind me mailing you directly, but I'm not on the 
mailing list.



That's fine, but I'll see it on the list, too.

I tried to fake the brackets like you suggested. The strange thing 
is that in math mode you can make big single brackets (no 
delimitation) by typing \Bigggl [
for instance. This gives you a big square bracket, just like I want. 
However, when I now

try to watch the result I get an error saying: undefined control sequence.

If \Bigggl is defined, that will work, but it isn't. If you define it, 
as e.g. here

 http://www2.math.kyushu-u.ac.jp/~ssaito/eng/tex/tips.html
then you can use it. If you just type e.g. \Big[, then it works.

That seems rather strange to me... I mean, why does Lyx gives you this 
option, but then when it comes down to it throws an error???


LyX will let you do what you want as far as raw TeX goes, and it has no 
way to check it, except by attempting to compile the document. You want 
to type \this\is\undefined? LyX will let you do that. Maybe it's all 
defined in some package somewhere.


I don't know if you can help any further, but I'm getting a bit 
frustrated and can't find any real usefull information about this on 
the web or in the Lyx documentation... I thought Lyx would make my 
life easier, but at the moment it is doing the opposite.


LyX makes life easier by handling the simple stuff. What's true here, I 
think, is that it ought to be possible to produce single delimiters 
natively.


Richard

Re: Equation in brackets too long

[Paul A. Rubin]

On 6/15/2010 6:41 AM, Michael Dzjaparidze wrote:

Hi,

I'm very new to Lyx and I have a problem I can't solve on my own. I've
searched on the internet for a solution, but could not really find it,
although it is pretty obvious I think.

The problem is that I have several long mathematical expressions in
brackets that don't get displayed fully (doesn't jump to a newline
automatically). Is there a way to force a newline inside a bracket somehow?

Thanks in advance,

Michael



Have a look at Help  Math sections 18.1.3 and 18.1.4.

/Paul

Re: Equation in brackets too long

[Richard Heck]

On 06/15/2010 12:39 PM, Michael Dzjaparidze wrote:

Hi Richard,

I hope you dont mind me mailing you directly, but I'm not on the 
mailing list.



That's fine, but I'll see it on the list, too.

I tried to fake the brackets like you suggested. The strange thing 
is that in math mode you can make big single brackets (no 
delimitation) by typing \Bigggl [
for instance. This gives you a big square bracket, just like I want. 
However, when I now

try to watch the result I get an error saying: undefined control sequence.

If \Bigggl is defined, that will work, but it isn't. If you define it, 
as e.g. here

 http://www2.math.kyushu-u.ac.jp/~ssaito/eng/tex/tips.html
then you can use it. If you just type e.g. \Big[, then it works.

That seems rather strange to me... I mean, why does Lyx gives you this 
option, but then when it comes down to it throws an error???


LyX will let you do what you want as far as raw TeX goes, and it has no 
way to check it, except by attempting to compile the document. You want 
to type \this\is\undefined? LyX will let you do that. Maybe it's all 
defined in some package somewhere.


I don't know if you can help any further, but I'm getting a bit 
frustrated and can't find any real usefull information about this on 
the web or in the Lyx documentation... I thought Lyx would make my 
life easier, but at the moment it is doing the opposite.


LyX makes life easier by handling the simple stuff. What's true here, I 
think, is that it ought to be possible to produce single delimiters 
natively.


Richard

Re: Equation in brackets too long

[Paul A. Rubin]

On 6/15/2010 6:41 AM, Michael Dzjaparidze wrote:

Hi,

I'm very new to Lyx and I have a problem I can't solve on my own. I've
searched on the internet for a solution, but could not really find it,
although it is pretty obvious I think.

The problem is that I have several long mathematical expressions in
brackets that don't get displayed fully (doesn't jump to a newline
automatically). Is there a way to force a newline inside a bracket somehow?

Thanks in advance,

Michael



Have a look at Help > Math sections 18.1.3 and 18.1.4.

/Paul

Re: Equation in brackets too long

[Richard Heck]

On 06/15/2010 12:39 PM, Michael Dzjaparidze wrote:

Hi Richard,

I hope you dont mind me mailing you directly, but I'm not on the 
mailing list.



That's fine, but I'll see it on the list, too.

I tried to "fake" the brackets like you suggested. The strange thing 
is that in math mode you can make big single brackets (no 
delimitation) by typing \Bigggl [
for instance. This gives you a big square bracket, just like I want. 
However, when I now

try to watch the result I get an error saying: undefined control sequence.

If \Bigggl is defined, that will work, but it isn't. If you define it, 
as e.g. here

 http://www2.math.kyushu-u.ac.jp/~ssaito/eng/tex/tips.html
then you can use it. If you just type e.g. "\Big[", then it works.

That seems rather strange to me... I mean, why does Lyx gives you this 
option, but then when it comes down to it throws an error???


LyX will let you do what you want as far as raw TeX goes, and it has no 
way to check it, except by attempting to compile the document. You want 
to type "\this\is\undefined"? LyX will let you do that. Maybe it's all 
defined in some package somewhere.


I don't know if you can help any further, but I'm getting a bit 
frustrated and can't find any real usefull information about this on 
the web or in the Lyx documentation... I thought Lyx would make my 
life easier, but at the moment it is doing the opposite.


LyX makes life easier by handling the simple stuff. What's true here, I 
think, is that it ought to be possible to produce single delimiters 
natively.


Richard

Re: Equation Numbering change in RTL languages

[Uwe Stöhr]

Am 17.05.2010 21:49, schrieb Nosrat Maghsoudi:


Greetings, I am using LyX to typeset a book in Farsi. Equation numbers
change when referenced. For example  (2-12), becomes (21-2). Please help
if you have a solution.


Can you please provide a LyX example file?

I tried to reproduce with the attached LyX file, but there it seems to 
work correctly.


regards Uwe


newfile3.lyx
Description: application/lyx

Re: Equation Numbering change in RTL languages

[Uwe Stöhr]

Am 17.05.2010 21:49, schrieb Nosrat Maghsoudi:


Greetings, I am using LyX to typeset a book in Farsi. Equation numbers
change when referenced. For example  (2-12), becomes (21-2). Please help
if you have a solution.


Can you please provide a LyX example file?

I tried to reproduce with the attached LyX file, but there it seems to 
work correctly.


regards Uwe


newfile3.lyx
Description: application/lyx

Re: Equation Numbering change in RTL languages

[Uwe Stöhr]

Am 17.05.2010 21:49, schrieb Nosrat Maghsoudi:


Greetings, I am using LyX to typeset a book in Farsi. Equation numbers
change when referenced. For example  (2-12), becomes (21-2). Please help
if you have a solution.


Can you please provide a LyX example file?

I tried to reproduce with the attached LyX file, but there it seems to 
work correctly.


regards Uwe


newfile3.lyx
Description: application/lyx

Re: equation and tikz problem

[Jürgen Spitzmüller]

Giovanni Bacci wrote:
 Hi all! I'm experiencing a strange behaviour. A bug i suppose.
 Anyway, i cannot compile the attached simple document.
 Removing /usepackage{tikz} from the preamble makes everything goes
 fine. It's a bug? Or i doing something wrong?

The document compiles fine for me.

Jürgen

Re: equation and tikz problem

[Giovanni Bacci]

  sabato 07 novembre 2009, 16:27, Jürgen Spitzmüller:

 Giovanni Bacci wrote:
  Hi all! I'm experiencing a strange behaviour. A bug i suppose.
  Anyway, i cannot compile the attached simple document.
  Removing /usepackage{tikz} from the preamble makes everything goes
  fine. It's a bug? Or i doing something wrong?
 
 The document compiles fine for me.

  I've tried exporting in pdflatex and doing pdflatex file.tex
directly, and i get the attached error. Maybe it depends on pdflatex or
pgf/tikz version? Or there's something misconfigured in my computer?

Thanks,
  Giovanni


tikz-bug-test.log.gz
Description: GNU Zip compressed data

Re: equation and tikz problem

[Paul A. Rubin]

Giovanni Bacci wrote:

  Hi all! I'm experiencing a strange behaviour. A bug i suppose.
Anyway, i cannot compile the attached simple document.
Removing /usepackage{tikz} from the preamble makes everything goes
fine. It's a bug? Or i doing something wrong?

btw:
lyx 1.6.4 on FedoraCore 10
pdflatex --version
pdfTeX using libpoppler 3.141592-1.40.3-2.2 (Web2C 7.5.6)
[...]
Compiled with libpng 1.2.31; using libpng 1.2.37
Compiled with zlib 1.2.3; using zlib 1.2.3
Compiled with libpoppler version 3.00

Thanks,
  Giovanni


It compiles for me (Win XP, MiKTeX 2.7), with one slight hitch.  If I 
change the language to English, it compiles straight up.  If I leave the 
language Italian, MiKTeX asks me at two or three separate points (the 
number seems to vary for no obvious reason) to install the LaTeX 
cyrillic package so that it can have a particular font.  Each time I say 
no, and in the end it compiles anyway.  Removing \usepackage{tikz} has 
no effect here.


Does the LaTeX log indicate why it fails to compile for you? Do you have 
the cyrillic package installed?


/Paul

Re: equation and tikz problem

[Jürgen Spitzmüller]

Giovanni Bacci wrote:
 I've tried exporting in pdflatex and doing pdflatex file.tex
 directly, and i get the attached error.

FYI this error log can also be obtained directly in LyX (Document - LaTeX Log 
File)

 Maybe it depends on pdflatex or
 pgf/tikz version? Or there's something misconfigured in my computer?

Probably an old, buggy pgf version? Here is my file list (you get such a list 
in the log file by inserting \listfiles to the preamble):

 *File List*
 article.cls2007/10/19 v1.4h Standard LaTeX document class
  size10.clo2007/10/19 v1.4h Standard LaTeX file (size option)
 fontenc.sty
   t1enc.def2005/09/27 v1.99g Standard LaTeX file
inputenc.sty2008/03/30 v1.1d Input encoding file
  latin9.def2008/03/30 v1.1d Input encoding file
tikz.sty2008/02/13 v2.00 (rcs-revision 1.27)
 pgf.sty2008/01/15 v2.00 (rcs-revision 1.12)
  pgfrcs.sty2008/02/20 v2.00 (rcs-revision 1.21)
  pgfrcs.code.tex
 pgfcore.sty2008/01/15 v2.00 (rcs-revision 1.6)
graphicx.sty1999/02/16 v1.0f Enhanced LaTeX Graphics (DPC,SPQR)
  keyval.sty1999/03/16 v1.13 key=value parser (DPC)
graphics.sty2009/02/05 v1.0o Standard LaTeX Graphics (DPC,SPQR)
trig.sty1999/03/16 v1.09 sin cos tan (DPC)
graphics.cfg2009/08/28 v1.8 graphics configuration of TeX Live
  pdftex.def2009/08/25 v0.04m Graphics/color for pdfTeX
  pgfsys.sty2008/02/07 v2.00 (rcs-revision 1.31)
  pgfsys.code.tex
pgfsyssoftpath.code.tex2008/01/23  (rcs-revision 1.6)
pgfsysprotocol.code.tex2006/10/16  (rcs-revision 1.4)
  xcolor.sty2007/01/21 v2.11 LaTeX color extensions (UK)
   color.cfg2007/01/18 v1.5 color configuration of teTeX/TeXLive
 pgfcore.code.tex
pgfcomp-version-0-65.sty2007/07/03 v2.00 (rcs-revision 1.7)
pgfcomp-version-1-18.sty2007/07/23 v2.00 (rcs-revision 1.1)
  pgffor.sty2007/11/07 v2.00 (rcs-revision 1.8)
  pgffor.code.tex
tikz.code.tex
   babel.sty2008/07/06 v3.8l The Babel package
 italian.ldf2008/03/14 v1.2t Italian support from the babel system
supp-pdf.mkii
 ***

Jürgen

Re: equation and tikz problem

[Giovanni Bacci]

  sabato 07 novembre 2009, 16:42, Jürgen Spitzmüller:

 Giovanni Bacci wrote:
  I've tried exporting in pdflatex and doing pdflatex file.tex
  directly, and i get the attached error.
 
 FYI this error log can also be obtained directly in LyX (Document -
 LaTeX Log File)

  I'm not aware of this. Thank for the info.

  Maybe it depends on pdflatex or
  pgf/tikz version? Or there's something misconfigured in my computer?
 
 Probably an old, buggy pgf version? Here is my file list (you get
 such a list in the log file by inserting \listfiles to the preamble):

  Yes, probably it's the case. Here's:
tikz.sty2006/10/17 v1.10 (rcs-revision 1.68)  
pgf.sty2006/10/11 v1.10 (rcs-revision 1.7)

  I'll try to upgrade. Thanks for pointing me in the right direction.

Giovanni

Re: equation and tikz problem

[Jürgen Spitzmüller]

Giovanni Bacci wrote:
 Hi all! I'm experiencing a strange behaviour. A bug i suppose.
 Anyway, i cannot compile the attached simple document.
 Removing /usepackage{tikz} from the preamble makes everything goes
 fine. It's a bug? Or i doing something wrong?

The document compiles fine for me.

Jürgen

Re: equation and tikz problem

[Giovanni Bacci]

  sabato 07 novembre 2009, 16:27, Jürgen Spitzmüller:

 Giovanni Bacci wrote:
  Hi all! I'm experiencing a strange behaviour. A bug i suppose.
  Anyway, i cannot compile the attached simple document.
  Removing /usepackage{tikz} from the preamble makes everything goes
  fine. It's a bug? Or i doing something wrong?
 
 The document compiles fine for me.

  I've tried exporting in pdflatex and doing pdflatex file.tex
directly, and i get the attached error. Maybe it depends on pdflatex or
pgf/tikz version? Or there's something misconfigured in my computer?

Thanks,
  Giovanni


tikz-bug-test.log.gz
Description: GNU Zip compressed data

Re: equation and tikz problem

[Paul A. Rubin]

Giovanni Bacci wrote:

  Hi all! I'm experiencing a strange behaviour. A bug i suppose.
Anyway, i cannot compile the attached simple document.
Removing /usepackage{tikz} from the preamble makes everything goes
fine. It's a bug? Or i doing something wrong?

btw:
lyx 1.6.4 on FedoraCore 10
pdflatex --version
pdfTeX using libpoppler 3.141592-1.40.3-2.2 (Web2C 7.5.6)
[...]
Compiled with libpng 1.2.31; using libpng 1.2.37
Compiled with zlib 1.2.3; using zlib 1.2.3
Compiled with libpoppler version 3.00

Thanks,
  Giovanni


It compiles for me (Win XP, MiKTeX 2.7), with one slight hitch.  If I 
change the language to English, it compiles straight up.  If I leave the 
language Italian, MiKTeX asks me at two or three separate points (the 
number seems to vary for no obvious reason) to install the LaTeX 
cyrillic package so that it can have a particular font.  Each time I say 
no, and in the end it compiles anyway.  Removing \usepackage{tikz} has 
no effect here.


Does the LaTeX log indicate why it fails to compile for you? Do you have 
the cyrillic package installed?


/Paul

Re: equation and tikz problem

[Jürgen Spitzmüller]

Giovanni Bacci wrote:
 I've tried exporting in pdflatex and doing pdflatex file.tex
 directly, and i get the attached error.

FYI this error log can also be obtained directly in LyX (Document - LaTeX Log 
File)

 Maybe it depends on pdflatex or
 pgf/tikz version? Or there's something misconfigured in my computer?

Probably an old, buggy pgf version? Here is my file list (you get such a list 
in the log file by inserting \listfiles to the preamble):

 *File List*
 article.cls2007/10/19 v1.4h Standard LaTeX document class
  size10.clo2007/10/19 v1.4h Standard LaTeX file (size option)
 fontenc.sty
   t1enc.def2005/09/27 v1.99g Standard LaTeX file
inputenc.sty2008/03/30 v1.1d Input encoding file
  latin9.def2008/03/30 v1.1d Input encoding file
tikz.sty2008/02/13 v2.00 (rcs-revision 1.27)
 pgf.sty2008/01/15 v2.00 (rcs-revision 1.12)
  pgfrcs.sty2008/02/20 v2.00 (rcs-revision 1.21)
  pgfrcs.code.tex
 pgfcore.sty2008/01/15 v2.00 (rcs-revision 1.6)
graphicx.sty1999/02/16 v1.0f Enhanced LaTeX Graphics (DPC,SPQR)
  keyval.sty1999/03/16 v1.13 key=value parser (DPC)
graphics.sty2009/02/05 v1.0o Standard LaTeX Graphics (DPC,SPQR)
trig.sty1999/03/16 v1.09 sin cos tan (DPC)
graphics.cfg2009/08/28 v1.8 graphics configuration of TeX Live
  pdftex.def2009/08/25 v0.04m Graphics/color for pdfTeX
  pgfsys.sty2008/02/07 v2.00 (rcs-revision 1.31)
  pgfsys.code.tex
pgfsyssoftpath.code.tex2008/01/23  (rcs-revision 1.6)
pgfsysprotocol.code.tex2006/10/16  (rcs-revision 1.4)
  xcolor.sty2007/01/21 v2.11 LaTeX color extensions (UK)
   color.cfg2007/01/18 v1.5 color configuration of teTeX/TeXLive
 pgfcore.code.tex
pgfcomp-version-0-65.sty2007/07/03 v2.00 (rcs-revision 1.7)
pgfcomp-version-1-18.sty2007/07/23 v2.00 (rcs-revision 1.1)
  pgffor.sty2007/11/07 v2.00 (rcs-revision 1.8)
  pgffor.code.tex
tikz.code.tex
   babel.sty2008/07/06 v3.8l The Babel package
 italian.ldf2008/03/14 v1.2t Italian support from the babel system
supp-pdf.mkii
 ***

Jürgen

Re: equation and tikz problem

[Giovanni Bacci]

  sabato 07 novembre 2009, 16:42, Jürgen Spitzmüller:

 Giovanni Bacci wrote:
  I've tried exporting in pdflatex and doing pdflatex file.tex
  directly, and i get the attached error.
 
 FYI this error log can also be obtained directly in LyX (Document -
 LaTeX Log File)

  I'm not aware of this. Thank for the info.

  Maybe it depends on pdflatex or
  pgf/tikz version? Or there's something misconfigured in my computer?
 
 Probably an old, buggy pgf version? Here is my file list (you get
 such a list in the log file by inserting \listfiles to the preamble):

  Yes, probably it's the case. Here's:
tikz.sty2006/10/17 v1.10 (rcs-revision 1.68)  
pgf.sty2006/10/11 v1.10 (rcs-revision 1.7)

  I'll try to upgrade. Thanks for pointing me in the right direction.

Giovanni

Re: equation and tikz problem

[Jürgen Spitzmüller]

Giovanni Bacci wrote:
> Hi all! I'm experiencing a strange behaviour. A bug i suppose.
> Anyway, i cannot compile the attached simple document.
> Removing /usepackage{tikz} from the preamble makes everything goes
> fine. It's a bug? Or i doing something wrong?

The document compiles fine for me.

Jürgen

Re: equation and tikz problem

[Giovanni Bacci]

  sabato 07 novembre 2009, 16:27, Jürgen Spitzmüller:

> Giovanni Bacci wrote:
> > Hi all! I'm experiencing a strange behaviour. A bug i suppose.
> > Anyway, i cannot compile the attached simple document.
> > Removing /usepackage{tikz} from the preamble makes everything goes
> > fine. It's a bug? Or i doing something wrong?
> 
> The document compiles fine for me.

  I've tried exporting in pdflatex and doing pdflatex file.tex
directly, and i get the attached error. Maybe it depends on pdflatex or
pgf/tikz version? Or there's something misconfigured in my computer?

Thanks,
  Giovanni


tikz-bug-test.log.gz
Description: GNU Zip compressed data

Re: equation and tikz problem

[Paul A. Rubin]

Giovanni Bacci wrote:

  Hi all! I'm experiencing a strange behaviour. A bug i suppose.
Anyway, i cannot compile the attached simple document.
Removing /usepackage{tikz} from the preamble makes everything goes
fine. It's a bug? Or i doing something wrong?

btw:
lyx 1.6.4 on FedoraCore 10
pdflatex --version
pdfTeX using libpoppler 3.141592-1.40.3-2.2 (Web2C 7.5.6)
[...]
Compiled with libpng 1.2.31; using libpng 1.2.37
Compiled with zlib 1.2.3; using zlib 1.2.3
Compiled with libpoppler version 3.00

Thanks,
  Giovanni


It compiles for me (Win XP, MiKTeX 2.7), with one slight hitch.  If I 
change the language to English, it compiles straight up.  If I leave the 
language Italian, MiKTeX asks me at two or three separate points (the 
number seems to vary for no obvious reason) to install the LaTeX 
cyrillic package so that it can have a particular font.  Each time I say 
no, and in the end it compiles anyway.  Removing \usepackage{tikz} has 
no effect here.


Does the LaTeX log indicate why it fails to compile for you? Do you have 
the cyrillic package installed?


/Paul

Re: equation and tikz problem

[Jürgen Spitzmüller]

Giovanni Bacci wrote:
> I've tried exporting in pdflatex and doing pdflatex file.tex
> directly, and i get the attached error.

FYI this error log can also be obtained directly in LyX (Document -> LaTeX Log 
File)

> Maybe it depends on pdflatex or
> pgf/tikz version? Or there's something misconfigured in my computer?

Probably an old, buggy pgf version? Here is my file list (you get such a list 
in the log file by inserting \listfiles to the preamble):

 *File List*
 article.cls2007/10/19 v1.4h Standard LaTeX document class
  size10.clo2007/10/19 v1.4h Standard LaTeX file (size option)
 fontenc.sty
   t1enc.def2005/09/27 v1.99g Standard LaTeX file
inputenc.sty2008/03/30 v1.1d Input encoding file
  latin9.def2008/03/30 v1.1d Input encoding file
tikz.sty2008/02/13 v2.00 (rcs-revision 1.27)
 pgf.sty2008/01/15 v2.00 (rcs-revision 1.12)
  pgfrcs.sty2008/02/20 v2.00 (rcs-revision 1.21)
  pgfrcs.code.tex
 pgfcore.sty2008/01/15 v2.00 (rcs-revision 1.6)
graphicx.sty1999/02/16 v1.0f Enhanced LaTeX Graphics (DPC,SPQR)
  keyval.sty1999/03/16 v1.13 key=value parser (DPC)
graphics.sty2009/02/05 v1.0o Standard LaTeX Graphics (DPC,SPQR)
trig.sty1999/03/16 v1.09 sin cos tan (DPC)
graphics.cfg2009/08/28 v1.8 graphics configuration of TeX Live
  pdftex.def2009/08/25 v0.04m Graphics/color for pdfTeX
  pgfsys.sty2008/02/07 v2.00 (rcs-revision 1.31)
  pgfsys.code.tex
pgfsyssoftpath.code.tex2008/01/23  (rcs-revision 1.6)
pgfsysprotocol.code.tex2006/10/16  (rcs-revision 1.4)
  xcolor.sty2007/01/21 v2.11 LaTeX color extensions (UK)
   color.cfg2007/01/18 v1.5 color configuration of teTeX/TeXLive
 pgfcore.code.tex
pgfcomp-version-0-65.sty2007/07/03 v2.00 (rcs-revision 1.7)
pgfcomp-version-1-18.sty2007/07/23 v2.00 (rcs-revision 1.1)
  pgffor.sty2007/11/07 v2.00 (rcs-revision 1.8)
  pgffor.code.tex
tikz.code.tex
   babel.sty2008/07/06 v3.8l The Babel package
 italian.ldf2008/03/14 v1.2t Italian support from the babel system
supp-pdf.mkii
 ***

Jürgen

Re: equation and tikz problem

[Giovanni Bacci]

  sabato 07 novembre 2009, 16:42, Jürgen Spitzmüller:

> Giovanni Bacci wrote:
> > I've tried exporting in pdflatex and doing pdflatex file.tex
> > directly, and i get the attached error.
> 
> FYI this error log can also be obtained directly in LyX (Document ->
> LaTeX Log File)

  I'm not aware of this. Thank for the info.

> > Maybe it depends on pdflatex or
> > pgf/tikz version? Or there's something misconfigured in my computer?
> 
> Probably an old, buggy pgf version? Here is my file list (you get
> such a list in the log file by inserting \listfiles to the preamble):

  Yes, probably it's the case. Here's:
tikz.sty2006/10/17 v1.10 (rcs-revision 1.68)  
pgf.sty2006/10/11 v1.10 (rcs-revision 1.7)

  I'll try to upgrade. Thanks for pointing me in the right direction.

Giovanni

Re: Equation Array

[Ignacio García]

Julio Rojas jcredbe...@... writes:

 
 Dear all, is there a way to individually label some equations of an
 equation array? Or some rows from an array?
 -
 Julio Rojas
 jcredbe...@...
 

Please have a look at HelpMath (or Ecuaciones) where you can
find a very fine description of this issue in the section 19,
19.3 and/or 19.4.

IG
 

Re: Equation Array

[Julio Rojas]

Thanks, I've already done that, but no option seems to be of help. I'm
trying to put an integer programing model and every restriction should
be numbered and aligned like:

Maximize Z  (1)
Subject to:
Z=sum(Xi) (2)
Xi+Xj=1   for all i,j in P, ij (3)
Xi,Xj in {0,1}for all i,j in P (4)

So, some rows are numbered, the left column is left aligned and the
right column is right aligned. How can this numbered array be done?
-
Julio Rojas
jcredbe...@gmail.com



2009/9/2 Ignacio García ignacio.gmora...@gmail.com:
 Julio Rojas jcredbe...@... writes:


 Dear all, is there a way to individually label some equations of an
 equation array? Or some rows from an array?
 -
 Julio Rojas
 jcredbe...@...


 Please have a look at HelpMath (or Ecuaciones) where you can
 find a very fine description of this issue in the section 19,
 19.3 and/or 19.4.

 IG

Re: Equation Array

[Paul A. Rubin]

Julio Rojas wrote:

Thanks, I've already done that, but no option seems to be of help. I'm
trying to put an integer programing model and every restriction should
be numbered and aligned like:

Maximize Z  (1)
Subject to:
Z=sum(Xi) (2)
Xi+Xj=1   for all i,j in P, ij (3)
Xi,Xj in {0,1}for all i,j in P (4)

So, some rows are numbered, the left column is left aligned and the
right column is right aligned. How can this numbered array be done?
-
Julio Rojas
jcredbe...@gmail.com



2009/9/2 Ignacio García ignacio.gmora...@gmail.com:

Julio Rojas jcredbe...@... writes:


Dear all, is there a way to individually label some equations of an
equation array? Or some rows from an array?
-
Julio Rojas
jcredbe...@...


Please have a look at HelpMath (or Ecuaciones) where you can
find a very fine description of this issue in the section 19,
19.3 and/or 19.4.



Julio,

Actually, I think what you want is in section 19.1.  Inside an equation 
array environment, Alt-m n toggles numbering of the entire array 
(separate number on each line), while Alt-m Shift-n toggles numbering of 
just the line the cursor occupies.


BTW, I too write integer programs.  A while back I came across a 
reference to an article (Avoid eqnarray! by Lars Madsen, The PracTeX 
Journal #4, 2006) that claims that eqnarray is somehow evil.  The 
complaints are mainly about spacing (including the possibility that 
equation numbers are overwritten or crowded off the line).  He 
recommends AMS math environments or the mathenv package.  Then again, I 
came across a post on sci.op-research that as I recall advocated eqnarray.


Anyway, here's an alternative I found somewhere:

\begin{alignat*}{7}
  \text{maximize }  z=2x_{1}+3x_{2}+
4x_{3}\\
  \text{subject to: }  44x_{1}+50x_{3} 
 \ge900\\

\llap{\ensuremath{x_{1},x_{2},x_{3}}}  \ge0

\end{alignat*}

FWIW,
Paul

Re: Equation Array

[Julio Rojas]

Thanks Paul, I've tried it but the first column is right aligned and
the third is left aligned. I'm kind of new on the subject and the
references I have from a friend make them left and right aligned,
respectively. Is there an standard way of aligning them?
-
Julio Rojas
jcredbe...@gmail.com



On Wed, Sep 2, 2009 at 5:11 PM, Paul A. Rubinru...@msu.edu wrote:
 Julio Rojas wrote:

 Thanks, I've already done that, but no option seems to be of help. I'm
 trying to put an integer programing model and every restriction should
 be numbered and aligned like:

 Maximize Z                                          (1)
 Subject to:
 Z=sum(Xi)                                             (2)
 Xi+Xj=1                       for all i,j in P, ij (3)
 Xi,Xj in {0,1}                        for all i,j in P (4)

 So, some rows are numbered, the left column is left aligned and the
 right column is right aligned. How can this numbered array be done?
 -
 Julio Rojas
 jcredbe...@gmail.com



 2009/9/2 Ignacio García ignacio.gmora...@gmail.com:

 Julio Rojas jcredbe...@... writes:

 Dear all, is there a way to individually label some equations of an
 equation array? Or some rows from an array?
 -
 Julio Rojas
 jcredbe...@...

 Please have a look at HelpMath (or Ecuaciones) where you can
 find a very fine description of this issue in the section 19,
 19.3 and/or 19.4.


 Julio,

 Actually, I think what you want is in section 19.1.  Inside an equation
 array environment, Alt-m n toggles numbering of the entire array (separate
 number on each line), while Alt-m Shift-n toggles numbering of just the line
 the cursor occupies.

 BTW, I too write integer programs.  A while back I came across a reference
 to an article (Avoid eqnarray! by Lars Madsen, The PracTeX Journal #4,
 2006) that claims that eqnarray is somehow evil.  The complaints are mainly
 about spacing (including the possibility that equation numbers are
 overwritten or crowded off the line).  He recommends AMS math environments
 or the mathenv package.  Then again, I came across a post on sci.op-research
 that as I recall advocated eqnarray.

 Anyway, here's an alternative I found somewhere:

 \begin{alignat*}{7}
   \text{maximize }  z=    2x_{1}    +    3x_{2}    +    4x_{3}\\
   \text{subject to: }      44x_{1}            +    50x_{3} 
 \ge900\\
                         \llap{\ensuremath{x_{1},x_{2},x_{3}}} 
 \ge0
 \end{alignat*}

 FWIW,
 Paul

Re: Equation Array

[Paul A. Rubin]

Julio,

Julio Rojas wrote:

Thanks Paul, I've tried it but the first column is right aligned and
the third is left aligned.


In the alignat* example?  Shouldn't be -- the alignment alternates 
right-left-right, so the first and third columns should have the same 
alignment.  Note that the first column is intentionally left empty, so 
that the 'maximize' and 'subject to' are in the second column (and hence 
left-aligned).



I'm kind of new on the subject and the
references I have from a friend make them left and right aligned,
respectively. Is there an standard way of aligning them?


I'm not sure there's a generally accepted standard.  I like to put the 
keywords (maximize, s.t.) in one column, the objective function and LHS 
of constraints in a second column, the constraint direction (=,,) in a 
 third column, the RHS in the fourth column and any indexing stuff in a 
fifth column, so I usually use eqnarray (critics be damned).  If I'm 
going to use alignat, then I'll put max/s.t. in column 2 (left aligned), 
the LHS _and_ =// in the third column (right aligned), the RHS in the 
fourth column (left aligned) and indexing in the fifth column (right 
aligned), which should work pretty well (it avoids gratuitous space in 
the middle of the constraints).


I guess it's a matter of taste (unless the constraints get long enough 
that eqnarray sends the equation numbers into another galaxy).


/Paul


-
Julio Rojas
jcredbe...@gmail.com



On Wed, Sep 2, 2009 at 5:11 PM, Paul A. Rubinru...@msu.edu wrote:

Julio Rojas wrote:

Thanks, I've already done that, but no option seems to be of help. I'm
trying to put an integer programing model and every restriction should
be numbered and aligned like:

Maximize Z  (1)
Subject to:
Z=sum(Xi) (2)
Xi+Xj=1   for all i,j in P, ij (3)
Xi,Xj in {0,1}for all i,j in P (4)

So, some rows are numbered, the left column is left aligned and the
right column is right aligned. How can this numbered array be done?
-
Julio Rojas
jcredbe...@gmail.com



2009/9/2 Ignacio García ignacio.gmora...@gmail.com:

Julio Rojas jcredbe...@... writes:


Dear all, is there a way to individually label some equations of an
equation array? Or some rows from an array?
-
Julio Rojas
jcredbe...@...


Please have a look at HelpMath (or Ecuaciones) where you can
find a very fine description of this issue in the section 19,
19.3 and/or 19.4.


Julio,

Actually, I think what you want is in section 19.1.  Inside an equation
array environment, Alt-m n toggles numbering of the entire array (separate
number on each line), while Alt-m Shift-n toggles numbering of just the line
the cursor occupies.

BTW, I too write integer programs.  A while back I came across a reference
to an article (Avoid eqnarray! by Lars Madsen, The PracTeX Journal #4,
2006) that claims that eqnarray is somehow evil.  The complaints are mainly
about spacing (including the possibility that equation numbers are
overwritten or crowded off the line).  He recommends AMS math environments
or the mathenv package.  Then again, I came across a post on sci.op-research
that as I recall advocated eqnarray.

Anyway, here's an alternative I found somewhere:

\begin{alignat*}{7}
  \text{maximize }  z=2x_{1}+3x_{2}+4x_{3}\\
  \text{subject to: }  44x_{1}+50x_{3} 
\ge900\\
\llap{\ensuremath{x_{1},x_{2},x_{3}}} 
\ge0
\end{alignat*}

FWIW,
Paul

Re: Equation Array

[Julio Rojas]

I made it with eqarray, but it only allows me to have 3 columns. How
did you add more columns?

I tried using alignat and it works ok, except for the fact that LyX
doesn't show proper alignment (only the first column is right aligned,
while all of the others are left aligned.

Thanks for your help.
-
Julio Rojas
jcredbe...@gmail.com



On Wed, Sep 2, 2009 at 6:00 PM, Paul A. Rubinru...@msu.edu wrote:
 Julio,

 Julio Rojas wrote:

 Thanks Paul, I've tried it but the first column is right aligned and
 the third is left aligned.

 In the alignat* example?  Shouldn't be -- the alignment alternates
 right-left-right, so the first and third columns should have the same
 alignment.  Note that the first column is intentionally left empty, so that
 the 'maximize' and 'subject to' are in the second column (and hence
 left-aligned).

 I'm kind of new on the subject and the
 references I have from a friend make them left and right aligned,
 respectively. Is there an standard way of aligning them?

 I'm not sure there's a generally accepted standard.  I like to put the
 keywords (maximize, s.t.) in one column, the objective function and LHS of
 constraints in a second column, the constraint direction (=,,) in a  third
 column, the RHS in the fourth column and any indexing stuff in a fifth
 column, so I usually use eqnarray (critics be damned).  If I'm going to use
 alignat, then I'll put max/s.t. in column 2 (left aligned), the LHS _and_
 =// in the third column (right aligned), the RHS in the fourth column
 (left aligned) and indexing in the fifth column (right aligned), which
 should work pretty well (it avoids gratuitous space in the middle of the
 constraints).

 I guess it's a matter of taste (unless the constraints get long enough that
 eqnarray sends the equation numbers into another galaxy).

 /Paul

 -
 Julio Rojas
 jcredbe...@gmail.com



 On Wed, Sep 2, 2009 at 5:11 PM, Paul A. Rubinru...@msu.edu wrote:

 Julio Rojas wrote:

 Thanks, I've already done that, but no option seems to be of help. I'm
 trying to put an integer programing model and every restriction should
 be numbered and aligned like:

 Maximize Z                                          (1)
 Subject to:
 Z=sum(Xi)                                             (2)
 Xi+Xj=1                       for all i,j in P, ij (3)
 Xi,Xj in {0,1}                        for all i,j in P (4)

 So, some rows are numbered, the left column is left aligned and the
 right column is right aligned. How can this numbered array be done?
 -
 Julio Rojas
 jcredbe...@gmail.com



 2009/9/2 Ignacio García ignacio.gmora...@gmail.com:

 Julio Rojas jcredbe...@... writes:

 Dear all, is there a way to individually label some equations of an
 equation array? Or some rows from an array?
 -
 Julio Rojas
 jcredbe...@...

 Please have a look at HelpMath (or Ecuaciones) where you can
 find a very fine description of this issue in the section 19,
 19.3 and/or 19.4.

 Julio,

 Actually, I think what you want is in section 19.1.  Inside an equation
 array environment, Alt-m n toggles numbering of the entire array
 (separate
 number on each line), while Alt-m Shift-n toggles numbering of just the
 line
 the cursor occupies.

 BTW, I too write integer programs.  A while back I came across a
 reference
 to an article (Avoid eqnarray! by Lars Madsen, The PracTeX Journal #4,
 2006) that claims that eqnarray is somehow evil.  The complaints are
 mainly
 about spacing (including the possibility that equation numbers are
 overwritten or crowded off the line).  He recommends AMS math
 environments
 or the mathenv package.  Then again, I came across a post on
 sci.op-research
 that as I recall advocated eqnarray.

 Anyway, here's an alternative I found somewhere:

 \begin{alignat*}{7}
   \text{maximize }  z=    2x_{1}    +    3x_{2}    +   
 4x_{3}\\
   \text{subject to: }      44x_{1}            +    50x_{3} 
 \ge900\\
                         \llap{\ensuremath{x_{1},x_{2},x_{3}}}
 
 \ge0
 \end{alignat*}

 FWIW,
 Paul

Re: Equation Array

[Paul A. Rubin]

Julio Rojas wrote:

I made it with eqarray, but it only allows me to have 3 columns. How
did you add more columns?


Oops -- forgot about that.  I'm not very consistent in what I use (I 
just went back and loaded some old papers to look).  Sometimes I use 
eqnarray (which is locked into three columns), in which case I put 
maximize and subject to in the left column, indexing in the right 
column and everything else in the middle.  Most times I create a display 
equation, then create an array with five columns, and go from there.  I 
think I've used alignat once or twice.  Seems to me there's some 
objection to using a plain old array, I think maybe relating to vertical 
space (not sure), but I'm not much concerned with aesthetics, and array 
is for me the easiest route.


I tried using alignat and it works ok, except for the fact that LyX
doesn't show proper alignment (only the first column is right aligned,
while all of the others are left aligned.


But it comes out right in the DVI/PDF output, which is all I worry about.


Thanks for your help.


My pleasure,
Paul

Re: Equation Array

[Ignacio García]

Julio Rojas jcredbe...@... writes:

 
 Dear all, is there a way to individually label some equations of an
 equation array? Or some rows from an array?
 -
 Julio Rojas
 jcredbe...@...
 

Please have a look at HelpMath (or Ecuaciones) where you can
find a very fine description of this issue in the section 19,
19.3 and/or 19.4.

IG
 

Re: Equation Array

[Julio Rojas]

Thanks, I've already done that, but no option seems to be of help. I'm
trying to put an integer programing model and every restriction should
be numbered and aligned like:

Maximize Z  (1)
Subject to:
Z=sum(Xi) (2)
Xi+Xj=1   for all i,j in P, ij (3)
Xi,Xj in {0,1}for all i,j in P (4)

So, some rows are numbered, the left column is left aligned and the
right column is right aligned. How can this numbered array be done?
-
Julio Rojas
jcredbe...@gmail.com



2009/9/2 Ignacio García ignacio.gmora...@gmail.com:
 Julio Rojas jcredbe...@... writes:


 Dear all, is there a way to individually label some equations of an
 equation array? Or some rows from an array?
 -
 Julio Rojas
 jcredbe...@...


 Please have a look at HelpMath (or Ecuaciones) where you can
 find a very fine description of this issue in the section 19,
 19.3 and/or 19.4.

 IG

Re: Equation Array

[Paul A. Rubin]

Julio Rojas wrote:

Thanks, I've already done that, but no option seems to be of help. I'm
trying to put an integer programing model and every restriction should
be numbered and aligned like:

Maximize Z  (1)
Subject to:
Z=sum(Xi) (2)
Xi+Xj=1   for all i,j in P, ij (3)
Xi,Xj in {0,1}for all i,j in P (4)

So, some rows are numbered, the left column is left aligned and the
right column is right aligned. How can this numbered array be done?
-
Julio Rojas
jcredbe...@gmail.com



2009/9/2 Ignacio García ignacio.gmora...@gmail.com:

Julio Rojas jcredbe...@... writes:


Dear all, is there a way to individually label some equations of an
equation array? Or some rows from an array?
-
Julio Rojas
jcredbe...@...


Please have a look at HelpMath (or Ecuaciones) where you can
find a very fine description of this issue in the section 19,
19.3 and/or 19.4.



Julio,

Actually, I think what you want is in section 19.1.  Inside an equation 
array environment, Alt-m n toggles numbering of the entire array 
(separate number on each line), while Alt-m Shift-n toggles numbering of 
just the line the cursor occupies.


BTW, I too write integer programs.  A while back I came across a 
reference to an article (Avoid eqnarray! by Lars Madsen, The PracTeX 
Journal #4, 2006) that claims that eqnarray is somehow evil.  The 
complaints are mainly about spacing (including the possibility that 
equation numbers are overwritten or crowded off the line).  He 
recommends AMS math environments or the mathenv package.  Then again, I 
came across a post on sci.op-research that as I recall advocated eqnarray.


Anyway, here's an alternative I found somewhere:

\begin{alignat*}{7}
  \text{maximize }  z=2x_{1}+3x_{2}+
4x_{3}\\
  \text{subject to: }  44x_{1}+50x_{3} 
 \ge900\\

\llap{\ensuremath{x_{1},x_{2},x_{3}}}  \ge0

\end{alignat*}

FWIW,
Paul

Re: Equation Array

[Julio Rojas]

Thanks Paul, I've tried it but the first column is right aligned and
the third is left aligned. I'm kind of new on the subject and the
references I have from a friend make them left and right aligned,
respectively. Is there an standard way of aligning them?
-
Julio Rojas
jcredbe...@gmail.com



On Wed, Sep 2, 2009 at 5:11 PM, Paul A. Rubinru...@msu.edu wrote:
 Julio Rojas wrote:

 Thanks, I've already done that, but no option seems to be of help. I'm
 trying to put an integer programing model and every restriction should
 be numbered and aligned like:

 Maximize Z                                          (1)
 Subject to:
 Z=sum(Xi)                                             (2)
 Xi+Xj=1                       for all i,j in P, ij (3)
 Xi,Xj in {0,1}                        for all i,j in P (4)

 So, some rows are numbered, the left column is left aligned and the
 right column is right aligned. How can this numbered array be done?
 -
 Julio Rojas
 jcredbe...@gmail.com



 2009/9/2 Ignacio García ignacio.gmora...@gmail.com:

 Julio Rojas jcredbe...@... writes:

 Dear all, is there a way to individually label some equations of an
 equation array? Or some rows from an array?
 -
 Julio Rojas
 jcredbe...@...

 Please have a look at HelpMath (or Ecuaciones) where you can
 find a very fine description of this issue in the section 19,
 19.3 and/or 19.4.


 Julio,

 Actually, I think what you want is in section 19.1.  Inside an equation
 array environment, Alt-m n toggles numbering of the entire array (separate
 number on each line), while Alt-m Shift-n toggles numbering of just the line
 the cursor occupies.

 BTW, I too write integer programs.  A while back I came across a reference
 to an article (Avoid eqnarray! by Lars Madsen, The PracTeX Journal #4,
 2006) that claims that eqnarray is somehow evil.  The complaints are mainly
 about spacing (including the possibility that equation numbers are
 overwritten or crowded off the line).  He recommends AMS math environments
 or the mathenv package.  Then again, I came across a post on sci.op-research
 that as I recall advocated eqnarray.

 Anyway, here's an alternative I found somewhere:

 \begin{alignat*}{7}
   \text{maximize }  z=    2x_{1}    +    3x_{2}    +    4x_{3}\\
   \text{subject to: }      44x_{1}            +    50x_{3} 
 \ge900\\
                         \llap{\ensuremath{x_{1},x_{2},x_{3}}} 
 \ge0
 \end{alignat*}

 FWIW,
 Paul

Re: Equation Array

[Paul A. Rubin]

Julio,

Julio Rojas wrote:

Thanks Paul, I've tried it but the first column is right aligned and
the third is left aligned.


In the alignat* example?  Shouldn't be -- the alignment alternates 
right-left-right, so the first and third columns should have the same 
alignment.  Note that the first column is intentionally left empty, so 
that the 'maximize' and 'subject to' are in the second column (and hence 
left-aligned).



I'm kind of new on the subject and the
references I have from a friend make them left and right aligned,
respectively. Is there an standard way of aligning them?


I'm not sure there's a generally accepted standard.  I like to put the 
keywords (maximize, s.t.) in one column, the objective function and LHS 
of constraints in a second column, the constraint direction (=,,) in a 
 third column, the RHS in the fourth column and any indexing stuff in a 
fifth column, so I usually use eqnarray (critics be damned).  If I'm 
going to use alignat, then I'll put max/s.t. in column 2 (left aligned), 
the LHS _and_ =// in the third column (right aligned), the RHS in the 
fourth column (left aligned) and indexing in the fifth column (right 
aligned), which should work pretty well (it avoids gratuitous space in 
the middle of the constraints).


I guess it's a matter of taste (unless the constraints get long enough 
that eqnarray sends the equation numbers into another galaxy).


/Paul


-
Julio Rojas
jcredbe...@gmail.com



On Wed, Sep 2, 2009 at 5:11 PM, Paul A. Rubinru...@msu.edu wrote:

Julio Rojas wrote:

Thanks, I've already done that, but no option seems to be of help. I'm
trying to put an integer programing model and every restriction should
be numbered and aligned like:

Maximize Z  (1)
Subject to:
Z=sum(Xi) (2)
Xi+Xj=1   for all i,j in P, ij (3)
Xi,Xj in {0,1}for all i,j in P (4)

So, some rows are numbered, the left column is left aligned and the
right column is right aligned. How can this numbered array be done?
-
Julio Rojas
jcredbe...@gmail.com



2009/9/2 Ignacio García ignacio.gmora...@gmail.com:

Julio Rojas jcredbe...@... writes:


Dear all, is there a way to individually label some equations of an
equation array? Or some rows from an array?
-
Julio Rojas
jcredbe...@...


Please have a look at HelpMath (or Ecuaciones) where you can
find a very fine description of this issue in the section 19,
19.3 and/or 19.4.


Julio,

Actually, I think what you want is in section 19.1.  Inside an equation
array environment, Alt-m n toggles numbering of the entire array (separate
number on each line), while Alt-m Shift-n toggles numbering of just the line
the cursor occupies.

BTW, I too write integer programs.  A while back I came across a reference
to an article (Avoid eqnarray! by Lars Madsen, The PracTeX Journal #4,
2006) that claims that eqnarray is somehow evil.  The complaints are mainly
about spacing (including the possibility that equation numbers are
overwritten or crowded off the line).  He recommends AMS math environments
or the mathenv package.  Then again, I came across a post on sci.op-research
that as I recall advocated eqnarray.

Anyway, here's an alternative I found somewhere:

\begin{alignat*}{7}
  \text{maximize }  z=2x_{1}+3x_{2}+4x_{3}\\
  \text{subject to: }  44x_{1}+50x_{3} 
\ge900\\
\llap{\ensuremath{x_{1},x_{2},x_{3}}} 
\ge0
\end{alignat*}

FWIW,
Paul

Re: Equation Array

[Julio Rojas]

I made it with eqarray, but it only allows me to have 3 columns. How
did you add more columns?

I tried using alignat and it works ok, except for the fact that LyX
doesn't show proper alignment (only the first column is right aligned,
while all of the others are left aligned.

Thanks for your help.
-
Julio Rojas
jcredbe...@gmail.com



On Wed, Sep 2, 2009 at 6:00 PM, Paul A. Rubinru...@msu.edu wrote:
 Julio,

 Julio Rojas wrote:

 Thanks Paul, I've tried it but the first column is right aligned and
 the third is left aligned.

 In the alignat* example?  Shouldn't be -- the alignment alternates
 right-left-right, so the first and third columns should have the same
 alignment.  Note that the first column is intentionally left empty, so that
 the 'maximize' and 'subject to' are in the second column (and hence
 left-aligned).

 I'm kind of new on the subject and the
 references I have from a friend make them left and right aligned,
 respectively. Is there an standard way of aligning them?

 I'm not sure there's a generally accepted standard.  I like to put the
 keywords (maximize, s.t.) in one column, the objective function and LHS of
 constraints in a second column, the constraint direction (=,,) in a  third
 column, the RHS in the fourth column and any indexing stuff in a fifth
 column, so I usually use eqnarray (critics be damned).  If I'm going to use
 alignat, then I'll put max/s.t. in column 2 (left aligned), the LHS _and_
 =// in the third column (right aligned), the RHS in the fourth column
 (left aligned) and indexing in the fifth column (right aligned), which
 should work pretty well (it avoids gratuitous space in the middle of the
 constraints).

 I guess it's a matter of taste (unless the constraints get long enough that
 eqnarray sends the equation numbers into another galaxy).

 /Paul

 -
 Julio Rojas
 jcredbe...@gmail.com



 On Wed, Sep 2, 2009 at 5:11 PM, Paul A. Rubinru...@msu.edu wrote:

 Julio Rojas wrote:

 Thanks, I've already done that, but no option seems to be of help. I'm
 trying to put an integer programing model and every restriction should
 be numbered and aligned like:

 Maximize Z                                          (1)
 Subject to:
 Z=sum(Xi)                                             (2)
 Xi+Xj=1                       for all i,j in P, ij (3)
 Xi,Xj in {0,1}                        for all i,j in P (4)

 So, some rows are numbered, the left column is left aligned and the
 right column is right aligned. How can this numbered array be done?
 -
 Julio Rojas
 jcredbe...@gmail.com



 2009/9/2 Ignacio García ignacio.gmora...@gmail.com:

 Julio Rojas jcredbe...@... writes:

 Dear all, is there a way to individually label some equations of an
 equation array? Or some rows from an array?
 -
 Julio Rojas
 jcredbe...@...

 Please have a look at HelpMath (or Ecuaciones) where you can
 find a very fine description of this issue in the section 19,
 19.3 and/or 19.4.

 Julio,

 Actually, I think what you want is in section 19.1.  Inside an equation
 array environment, Alt-m n toggles numbering of the entire array
 (separate
 number on each line), while Alt-m Shift-n toggles numbering of just the
 line
 the cursor occupies.

 BTW, I too write integer programs.  A while back I came across a
 reference
 to an article (Avoid eqnarray! by Lars Madsen, The PracTeX Journal #4,
 2006) that claims that eqnarray is somehow evil.  The complaints are
 mainly
 about spacing (including the possibility that equation numbers are
 overwritten or crowded off the line).  He recommends AMS math
 environments
 or the mathenv package.  Then again, I came across a post on
 sci.op-research
 that as I recall advocated eqnarray.

 Anyway, here's an alternative I found somewhere:

 \begin{alignat*}{7}
   \text{maximize }  z=    2x_{1}    +    3x_{2}    +   
 4x_{3}\\
   \text{subject to: }      44x_{1}            +    50x_{3} 
 \ge900\\
                         \llap{\ensuremath{x_{1},x_{2},x_{3}}}
 
 \ge0
 \end{alignat*}

 FWIW,
 Paul

Re: Equation Array

[Paul A. Rubin]

Julio Rojas wrote:

I made it with eqarray, but it only allows me to have 3 columns. How
did you add more columns?


Oops -- forgot about that.  I'm not very consistent in what I use (I 
just went back and loaded some old papers to look).  Sometimes I use 
eqnarray (which is locked into three columns), in which case I put 
maximize and subject to in the left column, indexing in the right 
column and everything else in the middle.  Most times I create a display 
equation, then create an array with five columns, and go from there.  I 
think I've used alignat once or twice.  Seems to me there's some 
objection to using a plain old array, I think maybe relating to vertical 
space (not sure), but I'm not much concerned with aesthetics, and array 
is for me the easiest route.


I tried using alignat and it works ok, except for the fact that LyX
doesn't show proper alignment (only the first column is right aligned,
while all of the others are left aligned.


But it comes out right in the DVI/PDF output, which is all I worry about.


Thanks for your help.


My pleasure,
Paul

Re: Equation Array

[Ignacio García]

Julio Rojas  writes:

> 
> Dear all, is there a way to individually label some equations of an
> equation array? Or some rows from an array?
> -
> Julio Rojas
> jcredbe...@...
> 

Please have a look at Help>Math (or Ecuaciones) where you can
find a very fine description of this issue in the section 19,
19.3 and/or 19.4.

IG
 

Re: Equation Array

[Julio Rojas]

Thanks, I've already done that, but no option seems to be of help. I'm
trying to put an integer programing model and every restriction should
be numbered and aligned like:

Maximize Z  (1)
Subject to:
Z=sum(Xi) (2)
Xi+Xj<=1   for all i,j in P, i:
> Julio Rojas  writes:
>
>>
>> Dear all, is there a way to individually label some equations of an
>> equation array? Or some rows from an array?
>> -
>> Julio Rojas
>> jcredbe...@...
>>
>
> Please have a look at Help>Math (or Ecuaciones) where you can
> find a very fine description of this issue in the section 19,
> 19.3 and/or 19.4.
>
> IG
>
>
>
>
>
>

Re: Equation Array

[Paul A. Rubin]

Julio Rojas wrote:

Thanks, I've already done that, but no option seems to be of help. I'm
trying to put an integer programing model and every restriction should
be numbered and aligned like:

Maximize Z  (1)
Subject to:
Z=sum(Xi) (2)
Xi+Xj<=1   for all i,j in P, i:

Julio Rojas  writes:


Dear all, is there a way to individually label some equations of an
equation array? Or some rows from an array?
-
Julio Rojas
jcredbe...@...


Please have a look at Help>Math (or Ecuaciones) where you can
find a very fine description of this issue in the section 19,
19.3 and/or 19.4.



Julio,

Actually, I think what you want is in section 19.1.  Inside an equation 
array environment, Alt-m n toggles numbering of the entire array 
(separate number on each line), while Alt-m Shift-n toggles numbering of 
just the line the cursor occupies.


BTW, I too write integer programs.  A while back I came across a 
reference to an article ("Avoid eqnarray!" by Lars Madsen, The PracTeX 
Journal #4, 2006) that claims that eqnarray is somehow evil.  The 
complaints are mainly about spacing (including the possibility that 
equation numbers are overwritten or crowded off the line).  He 
recommends AMS math environments or the mathenv package.  Then again, I 
came across a post on sci.op-research that as I recall advocated eqnarray.


Anyway, here's an alternative I found somewhere:

\begin{alignat*}{7}
 & \text{maximize } & z= &  & 2x_{1} &  & + &  & 3x_{2} &  & + &  & 
4x_{3}\\
 & \text{subject to: } &  &  & 44x_{1} &  &  &  &  &  & + &  & 50x_{3} 
& \ge900\\
 &  &  &  &  &  &  &  &  &  &  &  & 
\llap{\ensuremath{x_{1},x_{2},x_{3}}} & \ge0

\end{alignat*}

FWIW,
Paul

Re: Equation Array

[Julio Rojas]

Thanks Paul, I've tried it but the first column is right aligned and
the third is left aligned. I'm kind of new on the subject and the
references I have from a friend make them left and right aligned,
respectively. Is there an standard way of aligning them?
-
Julio Rojas
jcredbe...@gmail.com



On Wed, Sep 2, 2009 at 5:11 PM, Paul A. Rubin wrote:
> Julio Rojas wrote:
>>
>> Thanks, I've already done that, but no option seems to be of help. I'm
>> trying to put an integer programing model and every restriction should
>> be numbered and aligned like:
>>
>> Maximize Z                                          (1)
>> Subject to:
>> Z=sum(Xi)                                             (2)
>> Xi+Xj<=1                       for all i,j in P, i> Xi,Xj in {0,1}                        for all i,j in P (4)
>>
>> So, some rows are numbered, the left column is left aligned and the
>> right column is right aligned. How can this numbered array be done?
>> -
>> Julio Rojas
>> jcredbe...@gmail.com
>>
>>
>>
>> 2009/9/2 Ignacio García :
>>>
>>> Julio Rojas  writes:
>>>
 Dear all, is there a way to individually label some equations of an
 equation array? Or some rows from an array?
 -
 Julio Rojas
 jcredbe...@...

>>> Please have a look at Help>Math (or Ecuaciones) where you can
>>> find a very fine description of this issue in the section 19,
>>> 19.3 and/or 19.4.
>>>
>
> Julio,
>
> Actually, I think what you want is in section 19.1.  Inside an equation
> array environment, Alt-m n toggles numbering of the entire array (separate
> number on each line), while Alt-m Shift-n toggles numbering of just the line
> the cursor occupies.
>
> BTW, I too write integer programs.  A while back I came across a reference
> to an article ("Avoid eqnarray!" by Lars Madsen, The PracTeX Journal #4,
> 2006) that claims that eqnarray is somehow evil.  The complaints are mainly
> about spacing (including the possibility that equation numbers are
> overwritten or crowded off the line).  He recommends AMS math environments
> or the mathenv package.  Then again, I came across a post on sci.op-research
> that as I recall advocated eqnarray.
>
> Anyway, here's an alternative I found somewhere:
>
> \begin{alignat*}{7}
>  & \text{maximize } & z= &  & 2x_{1} &  & + &  & 3x_{2} &  & + &  & 4x_{3}\\
>  & \text{subject to: } &  &  & 44x_{1} &  &  &  &  &  & + &  & 50x_{3} &
> \ge900\\
>  &  &  &  &  &  &  &  &  &  &  &  & \llap{\ensuremath{x_{1},x_{2},x_{3}}} &
> \ge0
> \end{alignat*}
>
> FWIW,
> Paul
>
>

Re: Equation Array

[Paul A. Rubin]

Julio,

Julio Rojas wrote:

Thanks Paul, I've tried it but the first column is right aligned and
the third is left aligned.


In the alignat* example?  Shouldn't be -- the alignment alternates 
right-left-right, so the first and third columns should have the same 
alignment.  Note that the first column is intentionally left empty, so 
that the 'maximize' and 'subject to' are in the second column (and hence 
left-aligned).



I'm kind of new on the subject and the
references I have from a friend make them left and right aligned,
respectively. Is there an standard way of aligning them?


I'm not sure there's a generally accepted standard.  I like to put the 
keywords (maximize, s.t.) in one column, the objective function and LHS 
of constraints in a second column, the constraint direction (=,<,>) in a 
 third column, the RHS in the fourth column and any indexing stuff in a 
fifth column, so I usually use eqnarray (critics be damned).  If I'm 
going to use alignat, then I'll put max/s.t. in column 2 (left aligned), 
the LHS _and_ =/>/< in the third column (right aligned), the RHS in the 
fourth column (left aligned) and indexing in the fifth column (right 
aligned), which should work pretty well (it avoids gratuitous space in 
the middle of the constraints).


I guess it's a matter of taste (unless the constraints get long enough 
that eqnarray sends the equation numbers into another galaxy).


/Paul


-
Julio Rojas
jcredbe...@gmail.com



On Wed, Sep 2, 2009 at 5:11 PM, Paul A. Rubin wrote:

Julio Rojas wrote:

Thanks, I've already done that, but no option seems to be of help. I'm
trying to put an integer programing model and every restriction should
be numbered and aligned like:

Maximize Z  (1)
Subject to:
Z=sum(Xi) (2)
Xi+Xj<=1   for all i,j in P, i:

Julio Rojas  writes:


Dear all, is there a way to individually label some equations of an
equation array? Or some rows from an array?
-
Julio Rojas
jcredbe...@...


Please have a look at Help>Math (or Ecuaciones) where you can
find a very fine description of this issue in the section 19,
19.3 and/or 19.4.


Julio,

Actually, I think what you want is in section 19.1.  Inside an equation
array environment, Alt-m n toggles numbering of the entire array (separate
number on each line), while Alt-m Shift-n toggles numbering of just the line
the cursor occupies.

BTW, I too write integer programs.  A while back I came across a reference
to an article ("Avoid eqnarray!" by Lars Madsen, The PracTeX Journal #4,
2006) that claims that eqnarray is somehow evil.  The complaints are mainly
about spacing (including the possibility that equation numbers are
overwritten or crowded off the line).  He recommends AMS math environments
or the mathenv package.  Then again, I came across a post on sci.op-research
that as I recall advocated eqnarray.

Anyway, here's an alternative I found somewhere:

\begin{alignat*}{7}
 & \text{maximize } & z= &  & 2x_{1} &  & + &  & 3x_{2} &  & + &  & 4x_{3}\\
 & \text{subject to: } &  &  & 44x_{1} &  &  &  &  &  & + &  & 50x_{3} &
\ge900\\
 &  &  &  &  &  &  &  &  &  &  &  & \llap{\ensuremath{x_{1},x_{2},x_{3}}} &
\ge0
\end{alignat*}

FWIW,
Paul

Re: Equation Array

[Julio Rojas]

I made it with eqarray, but it "only" allows me to have 3 columns. How
did you add more columns?

I tried using alignat and it works ok, except for the fact that LyX
doesn't show proper alignment (only the first column is right aligned,
while all of the others are left aligned.

Thanks for your help.
-
Julio Rojas
jcredbe...@gmail.com



On Wed, Sep 2, 2009 at 6:00 PM, Paul A. Rubin wrote:
> Julio,
>
> Julio Rojas wrote:
>>
>> Thanks Paul, I've tried it but the first column is right aligned and
>> the third is left aligned.
>
> In the alignat* example?  Shouldn't be -- the alignment alternates
> right-left-right, so the first and third columns should have the same
> alignment.  Note that the first column is intentionally left empty, so that
> the 'maximize' and 'subject to' are in the second column (and hence
> left-aligned).
>
>> I'm kind of new on the subject and the
>> references I have from a friend make them left and right aligned,
>> respectively. Is there an standard way of aligning them?
>
> I'm not sure there's a generally accepted standard.  I like to put the
> keywords (maximize, s.t.) in one column, the objective function and LHS of
> constraints in a second column, the constraint direction (=,<,>) in a  third
> column, the RHS in the fourth column and any indexing stuff in a fifth
> column, so I usually use eqnarray (critics be damned).  If I'm going to use
> alignat, then I'll put max/s.t. in column 2 (left aligned), the LHS _and_
> =/>/< in the third column (right aligned), the RHS in the fourth column
> (left aligned) and indexing in the fifth column (right aligned), which
> should work pretty well (it avoids gratuitous space in the middle of the
> constraints).
>
> I guess it's a matter of taste (unless the constraints get long enough that
> eqnarray sends the equation numbers into another galaxy).
>
> /Paul
>
>> -
>> Julio Rojas
>> jcredbe...@gmail.com
>>
>>
>>
>> On Wed, Sep 2, 2009 at 5:11 PM, Paul A. Rubin wrote:
>>>
>>> Julio Rojas wrote:

 Thanks, I've already done that, but no option seems to be of help. I'm
 trying to put an integer programing model and every restriction should
 be numbered and aligned like:

 Maximize Z                                          (1)
 Subject to:
 Z=sum(Xi)                                             (2)
 Xi+Xj<=1                       for all i,j in P, i>>> Xi,Xj in {0,1}                        for all i,j in P (4)

 So, some rows are numbered, the left column is left aligned and the
 right column is right aligned. How can this numbered array be done?
 -
 Julio Rojas
 jcredbe...@gmail.com



 2009/9/2 Ignacio García :
>
> Julio Rojas  writes:
>
>> Dear all, is there a way to individually label some equations of an
>> equation array? Or some rows from an array?
>> -
>> Julio Rojas
>> jcredbe...@...
>>
> Please have a look at Help>Math (or Ecuaciones) where you can
> find a very fine description of this issue in the section 19,
> 19.3 and/or 19.4.
>
>>> Julio,
>>>
>>> Actually, I think what you want is in section 19.1.  Inside an equation
>>> array environment, Alt-m n toggles numbering of the entire array
>>> (separate
>>> number on each line), while Alt-m Shift-n toggles numbering of just the
>>> line
>>> the cursor occupies.
>>>
>>> BTW, I too write integer programs.  A while back I came across a
>>> reference
>>> to an article ("Avoid eqnarray!" by Lars Madsen, The PracTeX Journal #4,
>>> 2006) that claims that eqnarray is somehow evil.  The complaints are
>>> mainly
>>> about spacing (including the possibility that equation numbers are
>>> overwritten or crowded off the line).  He recommends AMS math
>>> environments
>>> or the mathenv package.  Then again, I came across a post on
>>> sci.op-research
>>> that as I recall advocated eqnarray.
>>>
>>> Anyway, here's an alternative I found somewhere:
>>>
>>> \begin{alignat*}{7}
>>>  & \text{maximize } & z= &  & 2x_{1} &  & + &  & 3x_{2} &  & + &  &
>>> 4x_{3}\\
>>>  & \text{subject to: } &  &  & 44x_{1} &  &  &  &  &  & + &  & 50x_{3} &
>>> \ge900\\
>>>  &  &  &  &  &  &  &  &  &  &  &  & \llap{\ensuremath{x_{1},x_{2},x_{3}}}
>>> &
>>> \ge0
>>> \end{alignat*}
>>>
>>> FWIW,
>>> Paul
>>>
>>>
>>
>
>

Re: Equation Array

[Paul A. Rubin]

Julio Rojas wrote:

I made it with eqarray, but it "only" allows me to have 3 columns. How
did you add more columns?


Oops -- forgot about that.  I'm not very consistent in what I use (I 
just went back and loaded some old papers to look).  Sometimes I use 
eqnarray (which is locked into three columns), in which case I put 
"maximize" and "subject to" in the left column, indexing in the right 
column and everything else in the middle.  Most times I create a display 
equation, then create an array with five columns, and go from there.  I 
think I've used alignat once or twice.  Seems to me there's some 
objection to using a plain old array, I think maybe relating to vertical 
space (not sure), but I'm not much concerned with aesthetics, and array 
is for me the easiest route.


I tried using alignat and it works ok, except for the fact that LyX
doesn't show proper alignment (only the first column is right aligned,
while all of the others are left aligned.


But it comes out right in the DVI/PDF output, which is all I worry about.


Thanks for your help.


My pleasure,
Paul

Re: Equation

[James C. Sutherland]

On Aug 22, 2009, at 9:36 AM, Alexis Salcedo wrote:


Hello.
How do I align the equation, with item 1?
See attached file.
Thanks


Can you be more specific?  What do you men by align?

Re: Equation

[Paul A. Rubin]

Alexis Salcedo wrote:

Hello.
How do I align the equation, with item 1?
See attached file.
Thanks




Is this what you had in mind?  (Disclaimer: horrible kludge.  LaTeX 
purists, please don't hate me!)


/Paul


ECUACIÓN2.lyx
Description: application/lyx

Re: Equation

[James C. Sutherland]

On Aug 22, 2009, at 9:36 AM, Alexis Salcedo wrote:


Hello.
How do I align the equation, with item 1?
See attached file.
Thanks


Can you be more specific?  What do you men by align?

Re: Equation

[Paul A. Rubin]

Alexis Salcedo wrote:

Hello.
How do I align the equation, with item 1?
See attached file.
Thanks




Is this what you had in mind?  (Disclaimer: horrible kludge.  LaTeX 
purists, please don't hate me!)


/Paul


ECUACIÓN2.lyx
Description: application/lyx

Re: Equation

[James C. Sutherland]

On Aug 22, 2009, at 9:36 AM, Alexis Salcedo wrote:


Hello.
How do I align the equation, with item 1?
See attached file.
Thanks


Can you be more specific?  What do you men by "align?"

Re: Equation

[Paul A. Rubin]

Alexis Salcedo wrote:

Hello.
How do I align the equation, with item 1?
See attached file.
Thanks




Is this what you had in mind?  (Disclaimer: horrible kludge.  LaTeX 
purists, please don't hate me!)


/Paul


ECUACIÓN2.lyx
Description: application/lyx

Re: Equation numbering

[Neil Hepburn]

HI Paula

Piece of cake.  In LyX, go into Document - Settings. On the Document  
Class page there is an area for class options. Put leqno in the  
custom options box and it will use the leqno LaTeX option which puts  
equations on the left.


-Neil

=
Neil Hepburn, Economics Instructor
Department of Social Sciences, Augustana Faculty
University of Alberta
4901-46 Avenue
Camrose, Alberta  T4V 2R3

Phone (780) 679-1588
email [EMAIL PROTECTED]



On 26-Nov-08, at 7:36 PM, Paulina Restrepo wrote:


Hi,

I use Lyx 1.5.1 on Mac OS. Right now I have all my equations  
numbered but the label appears to the far right
of the equation, I'm wondering if its possible to make the label  
appear at the far left of the equation.


Thank you very much for your help,

Paulina

Re: Equation numbering

[Neil Hepburn]

HI Paula

Piece of cake.  In LyX, go into Document - Settings. On the Document  
Class page there is an area for class options. Put leqno in the  
custom options box and it will use the leqno LaTeX option which puts  
equations on the left.


-Neil

=
Neil Hepburn, Economics Instructor
Department of Social Sciences, Augustana Faculty
University of Alberta
4901-46 Avenue
Camrose, Alberta  T4V 2R3

Phone (780) 679-1588
email [EMAIL PROTECTED]



On 26-Nov-08, at 7:36 PM, Paulina Restrepo wrote:


Hi,

I use Lyx 1.5.1 on Mac OS. Right now I have all my equations  
numbered but the label appears to the far right
of the equation, I'm wondering if its possible to make the label  
appear at the far left of the equation.


Thank you very much for your help,

Paulina

Re: Equation numbering

[Neil Hepburn]

HI Paula

Piece of cake.  In LyX, go into Document -> Settings. On the "Document  
Class" page there is an area for class options. Put leqno in the  
custom options box and it will use the leqno LaTeX option which puts  
equations on the left.


-Neil

=
Neil Hepburn, Economics Instructor
Department of Social Sciences, Augustana Faculty
University of Alberta
4901-46 Avenue
Camrose, Alberta  T4V 2R3

Phone (780) 679-1588
email [EMAIL PROTECTED]



On 26-Nov-08, at 7:36 PM, Paulina Restrepo wrote:


Hi,

I use Lyx 1.5.1 on Mac OS. Right now I have all my equations  
numbered but the label appears to the far right
of the equation, I'm wondering if its possible to make the label  
appear at the far left of the equation.


Thank you very much for your help,

Paulina

Re: Equation array and two column layout

[Vittorio Zuccala']

Hello Julio,
i do not know if i've understood your question.
Anyway, probably you can be interested one of this...

First solution:
press CTRL+L entering in ERT mode and then:
\begin{eqnarray}
d = a + b, if a1 \nonumber \\
= a-b, if a1 \nonumber \\
=0, if a=1 \nonumber
\end{eqnarray}

Second solution (i think better for you):
press CTRL+L entering in ERT mode and then:
$$ d = \left\{
\begin{array}{rl}  a+b \mbox{ if a1} \\
a-b \mbox{ if a1} \\
0 \mbox{ if a=1} \\
\end{array}
\right. $$


I hope it'll be usefull for you.
Bye,
   Vittorio


On Tue, Nov 25, 2008 at 1:01 PM, Julio Rojas [EMAIL PROTECTED] wrote:

 Dear all, I'm finishing a paper with the two columned article class. I
 have a problem with some equation arrays that are two big for this
 format. They span over the other column or over the margins, even with
 an smaller font (\scriptstyle). What can I do to solve this problem?
 Should I use an even smaller font (\scriptscriptstyle)? How can I
 break the line in an equation array and put the right hand of the
 array under the first part, but slightly to the right?

 The kind of equation array I'm using is conditional:

 d= a+b, if a1
 a-b, if a1
 0,if a=1

 Hope you can help me.
 -
 Julio Rojas
 [EMAIL PROTECTED]




-- 
Vittorio Zuccalà

Re: Equation array and two column layout

[Julio Rojas]

Thank you Vittorio. What I would like with this matrix is that the
right column can overfill the left one and viceversa. That way I can
have the long equations and the cases in two lines (eq. on the left
column, cases on the right column) every other line.

d= a+b+c+d+e+f+g
if a,b,c,d,e,f,g 1
 a-b-c-d-e-f-g
if a,b,c,d,e,f,g1

With this arrangement I can include the equations in just one column
of the two column paper. Is this something usual to do? What is the
regular way of handling the case of a series of long equations in
two columned papers?

Thanks in advance.
-
Julio Rojas
[EMAIL PROTECTED]



On Tue, Nov 25, 2008 at 2:50 PM, Vittorio Zuccala'
[EMAIL PROTECTED] wrote:
 Hello Julio,
 i do not know if i've understood your question.
 Anyway, probably you can be interested one of this...

 First solution:
 press CTRL+L entering in ERT mode and then:
 \begin{eqnarray}
 d = a + b, if a1 \nonumber \\
 = a-b, if a1 \nonumber \\
 =0, if a=1 \nonumber
 \end{eqnarray}

 Second solution (i think better for you):
 press CTRL+L entering in ERT mode and then:
 $$ d = \left\{
 \begin{array}{rl}  a+b \mbox{ if a1} \\
 a-b \mbox{ if a1} \\
 0 \mbox{ if a=1} \\
 \end{array}
 \right. $$


 I hope it'll be usefull for you.
 Bye,
Vittorio


 On Tue, Nov 25, 2008 at 1:01 PM, Julio Rojas [EMAIL PROTECTED] wrote:

 Dear all, I'm finishing a paper with the two columned article class. I
 have a problem with some equation arrays that are two big for this
 format. They span over the other column or over the margins, even with
 an smaller font (\scriptstyle). What can I do to solve this problem?
 Should I use an even smaller font (\scriptscriptstyle)? How can I
 break the line in an equation array and put the right hand of the
 array under the first part, but slightly to the right?

 The kind of equation array I'm using is conditional:

 d= a+b, if a1
 a-b, if a1
 0,if a=1

 Hope you can help me.
 -
 Julio Rojas
 [EMAIL PROTECTED]



 --
 Vittorio Zuccalà

Re: Equation array and two column layout

[Julio Rojas]

Thanks Vittorio, but this solution is not the one I'm looking for. I
would like the right column to be right aligned and the left column to
be left aligned. When I do that with your solution (changing the rl
to lr) this turns our to be the original matrix I started with. As I
said, I need the right column to overfill the left one in order to
make the equation fit inside one column of the document.

Anyways, thank you very much.
-
Julio Rojas
[EMAIL PROTECTED]



On Tue, Nov 25, 2008 at 4:48 PM, Vittorio Zuccala'
[EMAIL PROTECTED] wrote:
 If you have to go to another line, you may use \\ in ERT
 and you may use \: to have additional space.
 In this way un can use in ERT mode:

 $$ d = \left\{
 \begin{array}{rl}
 a+b+c+d+e+f+g \\ \: \mbox{ if a,b,c,d,e,f,g 1} \\
 a-b-c-d-e-f-g \\ \: \mbox{ if a,b,c,d,e,f,g1} \\
 0 \mbox{ if a=1} \\ \: \end{array}
 \right. $$

 I hope this will be usefull.
 Bye,
 Vittorio


 On Tue, Nov 25, 2008 at 4:18 PM, Julio Rojas [EMAIL PROTECTED] wrote:

 Thank you Vittorio. What I would like with this matrix is that the
 right column can overfill the left one and viceversa. That way I can
 have the long equations and the cases in two lines (eq. on the left
 column, cases on the right column) every other line.

 d= a+b+c+d+e+f+g
if a,b,c,d,e,f,g 1
 a-b-c-d-e-f-g
if a,b,c,d,e,f,g1

 With this arrangement I can include the equations in just one column
 of the two column paper. Is this something usual to do? What is the
 regular way of handling the case of a series of long equations in
 two columned papers?

 Thanks in advance.
 -
 Julio Rojas
 [EMAIL PROTECTED]



 On Tue, Nov 25, 2008 at 2:50 PM, Vittorio Zuccala'
 [EMAIL PROTECTED] wrote:
  Hello Julio,
  i do not know if i've understood your question.
  Anyway, probably you can be interested one of this...
 
  First solution:
  press CTRL+L entering in ERT mode and then:
  \begin{eqnarray}
  d = a + b, if a1 \nonumber \\
  = a-b, if a1 \nonumber \\
  =0, if a=1 \nonumber
  \end{eqnarray}
 
  Second solution (i think better for you):
  press CTRL+L entering in ERT mode and then:
  $$ d = \left\{
  \begin{array}{rl}  a+b \mbox{ if a1} \\
  a-b \mbox{ if a1} \\
  0 \mbox{ if a=1} \\
  \end{array}
  \right. $$
 
 
  I hope it'll be usefull for you.
  Bye,
 Vittorio
 
 
  On Tue, Nov 25, 2008 at 1:01 PM, Julio Rojas [EMAIL PROTECTED]
  wrote:
 
  Dear all, I'm finishing a paper with the two columned article class. I
  have a problem with some equation arrays that are two big for this
  format. They span over the other column or over the margins, even with
  an smaller font (\scriptstyle). What can I do to solve this problem?
  Should I use an even smaller font (\scriptscriptstyle)? How can I
  break the line in an equation array and put the right hand of the
  array under the first part, but slightly to the right?
 
  The kind of equation array I'm using is conditional:
 
  d= a+b, if a1
  a-b, if a1
  0,if a=1
 
  Hope you can help me.
  -
  Julio Rojas
  [EMAIL PROTECTED]
 
 
 
  --
  Vittorio Zuccalà
 



 --
 Vittorio Zuccalà

Re: Equation array and two column layout

[Vittorio Zuccala']

Hello Julio,
i do not know if i've understood your question.
Anyway, probably you can be interested one of this...

First solution:
press CTRL+L entering in ERT mode and then:
\begin{eqnarray}
d = a + b, if a1 \nonumber \\
= a-b, if a1 \nonumber \\
=0, if a=1 \nonumber
\end{eqnarray}

Second solution (i think better for you):
press CTRL+L entering in ERT mode and then:
$$ d = \left\{
\begin{array}{rl}  a+b \mbox{ if a1} \\
a-b \mbox{ if a1} \\
0 \mbox{ if a=1} \\
\end{array}
\right. $$


I hope it'll be usefull for you.
Bye,
   Vittorio


On Tue, Nov 25, 2008 at 1:01 PM, Julio Rojas [EMAIL PROTECTED] wrote:

 Dear all, I'm finishing a paper with the two columned article class. I
 have a problem with some equation arrays that are two big for this
 format. They span over the other column or over the margins, even with
 an smaller font (\scriptstyle). What can I do to solve this problem?
 Should I use an even smaller font (\scriptscriptstyle)? How can I
 break the line in an equation array and put the right hand of the
 array under the first part, but slightly to the right?

 The kind of equation array I'm using is conditional:

 d= a+b, if a1
 a-b, if a1
 0,if a=1

 Hope you can help me.
 -
 Julio Rojas
 [EMAIL PROTECTED]




-- 
Vittorio Zuccalà

Re: Equation array and two column layout

[Julio Rojas]

Thank you Vittorio. What I would like with this matrix is that the
right column can overfill the left one and viceversa. That way I can
have the long equations and the cases in two lines (eq. on the left
column, cases on the right column) every other line.

d= a+b+c+d+e+f+g
if a,b,c,d,e,f,g 1
 a-b-c-d-e-f-g
if a,b,c,d,e,f,g1

With this arrangement I can include the equations in just one column
of the two column paper. Is this something usual to do? What is the
regular way of handling the case of a series of long equations in
two columned papers?

Thanks in advance.
-
Julio Rojas
[EMAIL PROTECTED]



On Tue, Nov 25, 2008 at 2:50 PM, Vittorio Zuccala'
[EMAIL PROTECTED] wrote:
 Hello Julio,
 i do not know if i've understood your question.
 Anyway, probably you can be interested one of this...

 First solution:
 press CTRL+L entering in ERT mode and then:
 \begin{eqnarray}
 d = a + b, if a1 \nonumber \\
 = a-b, if a1 \nonumber \\
 =0, if a=1 \nonumber
 \end{eqnarray}

 Second solution (i think better for you):
 press CTRL+L entering in ERT mode and then:
 $$ d = \left\{
 \begin{array}{rl}  a+b \mbox{ if a1} \\
 a-b \mbox{ if a1} \\
 0 \mbox{ if a=1} \\
 \end{array}
 \right. $$


 I hope it'll be usefull for you.
 Bye,
Vittorio


 On Tue, Nov 25, 2008 at 1:01 PM, Julio Rojas [EMAIL PROTECTED] wrote:

 Dear all, I'm finishing a paper with the two columned article class. I
 have a problem with some equation arrays that are two big for this
 format. They span over the other column or over the margins, even with
 an smaller font (\scriptstyle). What can I do to solve this problem?
 Should I use an even smaller font (\scriptscriptstyle)? How can I
 break the line in an equation array and put the right hand of the
 array under the first part, but slightly to the right?

 The kind of equation array I'm using is conditional:

 d= a+b, if a1
 a-b, if a1
 0,if a=1

 Hope you can help me.
 -
 Julio Rojas
 [EMAIL PROTECTED]



 --
 Vittorio Zuccalà

Re: Equation array and two column layout

[Julio Rojas]

Thanks Vittorio, but this solution is not the one I'm looking for. I
would like the right column to be right aligned and the left column to
be left aligned. When I do that with your solution (changing the rl
to lr) this turns our to be the original matrix I started with. As I
said, I need the right column to overfill the left one in order to
make the equation fit inside one column of the document.

Anyways, thank you very much.
-
Julio Rojas
[EMAIL PROTECTED]



On Tue, Nov 25, 2008 at 4:48 PM, Vittorio Zuccala'
[EMAIL PROTECTED] wrote:
 If you have to go to another line, you may use \\ in ERT
 and you may use \: to have additional space.
 In this way un can use in ERT mode:

 $$ d = \left\{
 \begin{array}{rl}
 a+b+c+d+e+f+g \\ \: \mbox{ if a,b,c,d,e,f,g 1} \\
 a-b-c-d-e-f-g \\ \: \mbox{ if a,b,c,d,e,f,g1} \\
 0 \mbox{ if a=1} \\ \: \end{array}
 \right. $$

 I hope this will be usefull.
 Bye,
 Vittorio


 On Tue, Nov 25, 2008 at 4:18 PM, Julio Rojas [EMAIL PROTECTED] wrote:

 Thank you Vittorio. What I would like with this matrix is that the
 right column can overfill the left one and viceversa. That way I can
 have the long equations and the cases in two lines (eq. on the left
 column, cases on the right column) every other line.

 d= a+b+c+d+e+f+g
if a,b,c,d,e,f,g 1
 a-b-c-d-e-f-g
if a,b,c,d,e,f,g1

 With this arrangement I can include the equations in just one column
 of the two column paper. Is this something usual to do? What is the
 regular way of handling the case of a series of long equations in
 two columned papers?

 Thanks in advance.
 -
 Julio Rojas
 [EMAIL PROTECTED]



 On Tue, Nov 25, 2008 at 2:50 PM, Vittorio Zuccala'
 [EMAIL PROTECTED] wrote:
  Hello Julio,
  i do not know if i've understood your question.
  Anyway, probably you can be interested one of this...
 
  First solution:
  press CTRL+L entering in ERT mode and then:
  \begin{eqnarray}
  d = a + b, if a1 \nonumber \\
  = a-b, if a1 \nonumber \\
  =0, if a=1 \nonumber
  \end{eqnarray}
 
  Second solution (i think better for you):
  press CTRL+L entering in ERT mode and then:
  $$ d = \left\{
  \begin{array}{rl}  a+b \mbox{ if a1} \\
  a-b \mbox{ if a1} \\
  0 \mbox{ if a=1} \\
  \end{array}
  \right. $$
 
 
  I hope it'll be usefull for you.
  Bye,
 Vittorio
 
 
  On Tue, Nov 25, 2008 at 1:01 PM, Julio Rojas [EMAIL PROTECTED]
  wrote:
 
  Dear all, I'm finishing a paper with the two columned article class. I
  have a problem with some equation arrays that are two big for this
  format. They span over the other column or over the margins, even with
  an smaller font (\scriptstyle). What can I do to solve this problem?
  Should I use an even smaller font (\scriptscriptstyle)? How can I
  break the line in an equation array and put the right hand of the
  array under the first part, but slightly to the right?
 
  The kind of equation array I'm using is conditional:
 
  d= a+b, if a1
  a-b, if a1
  0,if a=1
 
  Hope you can help me.
  -
  Julio Rojas
  [EMAIL PROTECTED]
 
 
 
  --
  Vittorio Zuccalà
 



 --
 Vittorio Zuccalà

Re: Equation array and two column layout

[Vittorio Zuccala']

Hello Julio,
i do not know if i've understood your question.
Anyway, probably you can be interested one of this...

First solution:
press CTRL+L entering in ERT mode and then:
\begin{eqnarray}
d &=& a + b, if a>1 \nonumber \\
&=& a-b, if a<1 \nonumber \\
&=&0, if a=1 \nonumber
\end{eqnarray}

Second solution (i think better for you):
press CTRL+L entering in ERT mode and then:
$$ d = \left\{
\begin{array}{rl}  a+b &\mbox{ if a>1} \\
a-b &\mbox{ if a<1} \\
0 &\mbox{ if a=1} \\
\end{array}
\right. $$


I hope it'll be usefull for you.
Bye,
   Vittorio


On Tue, Nov 25, 2008 at 1:01 PM, Julio Rojas <[EMAIL PROTECTED]> wrote:

> Dear all, I'm finishing a paper with the two columned article class. I
> have a problem with some equation arrays that are two big for this
> format. They span over the other column or over the margins, even with
> an smaller font (\scriptstyle). What can I do to solve this problem?
> Should I use an even smaller font (\scriptscriptstyle)? How can I
> break the line in an equation array and put the right hand of the
> array under the first part, but slightly to the right?
>
> The kind of equation array I'm using is conditional:
>
> d= a+b, if a>1
> a-b, if a<1
> 0,if a=1
>
> Hope you can help me.
> -
> Julio Rojas
> [EMAIL PROTECTED]
>



-- 
Vittorio Zuccalà

Re: Equation array and two column layout

[Julio Rojas]

Thank you Vittorio. What I would like with this matrix is that the
right column can overfill the left one and viceversa. That way I can
have the long equations and the cases in two lines (eq. on the left
column, cases on the right column) every other line.

d= a+b+c+d+e+f+g
if a,b,c,d,e,f,g >1
 a-b-c-d-e-f-g
if a,b,c,d,e,f,g<1

With this arrangement I can include the equations in just one column
of the two column paper. Is this something usual to do? What is the
"regular" way of handling the case of a series of long equations in
two columned papers?

Thanks in advance.
-
Julio Rojas
[EMAIL PROTECTED]



On Tue, Nov 25, 2008 at 2:50 PM, Vittorio Zuccala'
<[EMAIL PROTECTED]> wrote:
> Hello Julio,
> i do not know if i've understood your question.
> Anyway, probably you can be interested one of this...
>
> First solution:
> press CTRL+L entering in ERT mode and then:
> \begin{eqnarray}
> d &=& a + b, if a>1 \nonumber \\
> &=& a-b, if a<1 \nonumber \\
> &=&0, if a=1 \nonumber
> \end{eqnarray}
>
> Second solution (i think better for you):
> press CTRL+L entering in ERT mode and then:
> $$ d = \left\{
> \begin{array}{rl}  a+b &\mbox{ if a>1} \\
> a-b &\mbox{ if a<1} \\
> 0 &\mbox{ if a=1} \\
> \end{array}
> \right. $$
>
>
> I hope it'll be usefull for you.
> Bye,
>Vittorio
>
>
> On Tue, Nov 25, 2008 at 1:01 PM, Julio Rojas <[EMAIL PROTECTED]> wrote:
>>
>> Dear all, I'm finishing a paper with the two columned article class. I
>> have a problem with some equation arrays that are two big for this
>> format. They span over the other column or over the margins, even with
>> an smaller font (\scriptstyle). What can I do to solve this problem?
>> Should I use an even smaller font (\scriptscriptstyle)? How can I
>> break the line in an equation array and put the right hand of the
>> array under the first part, but slightly to the right?
>>
>> The kind of equation array I'm using is conditional:
>>
>> d= a+b, if a>1
>> a-b, if a<1
>> 0,if a=1
>>
>> Hope you can help me.
>> -
>> Julio Rojas
>> [EMAIL PROTECTED]
>
>
>
> --
> Vittorio Zuccalà
>