Re: [NTG-context] Reg. fonts and math
--- On Jan 13, Aditya Mahajan wrote ---
--- On Jan 13, Hans Hagen wrote ---
Aditya Mahajan wrote:
No, I mean the complicated math is much harder in context. Consider
\begin{align}
a = b \\
c = d \notag \\
= f \notag \\
= g
\end{align}
which will typeset as
a = b(1)
c = d
= f
= g(2)
\begin{subequations}
\begin{align}
a = b \\
c = d
\end{align}
\end{subequations}
Compare this from how to do this in context (see the wiki). You have to
*manually* set the number of the subequation. Actually, for equation
numbering and refering, the context way is rather limited. Consider
something like an align environment
a = b\\
c = d\\
e = f
Suppose, I want to refer to the second equation. In latex, I can simply
add \label{eq:2} and the end of c= d and then \ref{eq:2}. For context,
the reference label goes at the top, with \placeformula[eqs]. But I am not
sure, how to give individual labels to each equations.
this 'loose label' is one of the ugliest concept i can think of -)
If you come up with any other way, I will be glad to use it. Frankly, I do
not think that the latex syntax is the best, but plain tex looks too
indimidating and context does not have anything yet.
btw, defaulting to numbers and then using \notag is messy; i prefer
readable code, even if it takes more bytes; inventing a formula takes
more time than keying it in. Also, more structure, means more hooks for
configurability
Fine by me. Your method is perfectly acceptable.
much if this 'complicated' math is not that complicated to support,see
attached file
Wonderful. I did not know that something like this can be done so easily in
context.
i'm willing to implement anything reasonable but since i hardly use such
math i only act on 'i want to achieve this' kind of specs (i have no time
to read tons of tex documents)
Here are features that I would want context math to have. I do not care about
the input syntax (whether it is same as latex or not) as long as the features
are there.
[snipped]
One more request. Allow these align, gather environments to break
across a page. Allow the user some kind of customization, whether the
break can occur at a particular location or not.
--
Aditya Mahajan, EECS Systems, University of Michigan
http://www.eecs.umich.edu/~adityam || Ph: 7342624008
___
ntg-context mailing list
ntg-context@ntg.nl
http://www.ntg.nl/mailman/listinfo/ntg-context
Re: [NTG-context] Reg. fonts and math
Hello, %D \startbuffer %D \placeformula \startformula \startalign %D \NC a \NC \eq b \NR[+] %D \NC c \NC \neq d \NR %D \NC\NC \neq f \NR[for:hans] %D \NC\NC \geq g \NR[for:whoelse][a] %D \NC\NC \leq h \NR[for:whomore][b] %D \NC\NC \neq i \NR %D \stopalign \stopformula %D \stopbuffer Can this be enhanced to allow more than one alignment points? For instance f(x) = x²+b² = g(x) (1) h(x,y) = x²-5y² = g_2(x,y) (2) should be aligned at the each =, currently - using \equalign(no) or \startalign - one can only align at one. Tobias ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
Re: [NTG-context] Reg. fonts and math
Just to give you some hints what's already there... Aditya Mahajan [EMAIL PROTECTED] writes: 63 lines deleted by Adam Duck 1. Have align support with variable number of columns. a = b = c + d + e should be typeset as a = b = c + d + e At least this should be possible with \wall and \return (using the nath module), like this: #v+ a \wall = b \\ = c \wall + d \\ + e \return\return #v- 20 lines deleted by Adam Duck 5. have a splitformula environment that allows a = b + c \\ + d to come out as a = b + c + e(1) with only one formula number. The formula number should be at the last line or the center of the whole formula, configurable by an option. 142 lines deleted by Adam Duck Again, this is a \wall-\return thingy, but \placeformula places the number vertically centered... #v+ \usemodule[nath] \starttext \placeformula \startformula a \wall = b \\ +c \\ +e \return \stopformula \startformula a \wall = b \\ = c \wall + d \\ +e \return\return \stopformula \stoptext #v- cu, Adam. ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
Re: [NTG-context] Reg. fonts and math
--- On Jan 14, Adam Duck wrote --- Just to give you some hints what's already there... Aditya Mahajan [EMAIL PROTECTED] writes: 63 lines deleted by Adam Duck 1. Have align support with variable number of columns. a = b = c + d + e should be typeset as a = b = c + d + e At least this should be possible with \wall and \return (using the nath module), like this: #v+ a \wall = b \\ = c \wall + d \\ + e \return\return #v- Unfortunately, if I use nath, I can not use underbrace inside \startstop align of nath. See a previous post of mine with the subject 'Nath bug?'. It will be nice if I can use both solutions. 20 lines deleted by Adam Duck 5. have a splitformula environment that allows a = b + c \\ + d to come out as a = b + c + e(1) with only one formula number. The formula number should be at the last line or the center of the whole formula, configurable by an option. 142 lines deleted by Adam Duck Again, this is a \wall-\return thingy, but \placeformula places the number vertically centered... Is there someway in which the formula numbering can be forced to be at the bottom. Maybe by adding an option to setupformulae. Latex has a class option ctags/tbtags which controls this. [ useful example snipped] Thanks, Aditya -- Aditya Mahajan, EECS Systems, University of Michigan http://www.eecs.umich.edu/~adityam || Ph: 7342624008 ___ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context
Re: [NTG-context] Reg. fonts and math
Aditya Mahajan wrote:
No, I mean the complicated math is much harder in context. Consider
\begin{align}
a = b \\
c = d \notag \\
= f \notag \\
= g
\end{align}
which will typeset as
a = b(1)
c = d
= f
= g(2)
\begin{subequations}
\begin{align}
a = b \\
c = d
\end{align}
\end{subequations}
Compare this from how to do this in context (see the wiki). You have
to *manually* set the number of the subequation. Actually, for
equation numbering and refering, the context way is rather limited.
Consider something like an align environment
a = b\\
c = d\\
e = f
Suppose, I want to refer to the second equation. In latex, I can
simply add \label{eq:2} and the end of c= d and then \ref{eq:2}. For
context, the reference label goes at the top, with \placeformula[eqs].
But I am not sure, how to give individual labels to each equations.
this 'loose label' is one of the ugliest concept i can think of -)
i'm willing to implement anything reasonable but since i hardly use
such math i only act on 'i want to achieve this' kind of specs (i have
no time to read tons of tex documents)
much if this 'complicated' math is not that complicated to support,see
attached file
btw, defaulting to numbers and then using \notag is messy; i prefer
readable code, even if it takes more bytes; inventing a formula takes
more time than keying it in. Also, more structure, means more hooks
for configurability
Hans
% some simple math constructs
\unprotect
\def\numberedeqalign
{\doifelse\@@fmlocation\v!left\leqalignno\eqalignno}
\def\doalignNR[#1][#2]%
{\doifsomething{#1}
{\doifelse{#1}{+}
{\doformulanumber[][#2][]{}}
{\doformulanumber[#1][#2][]{
\long\def\startalign#1\stopalign
{\def\NC{\crcr\def\NC1{1}}%
\def\EQ{=}
\def\NR{\dodoubleempty\doalignNR}%
% amstex compatibility mode:
\def\notag{\def\\{\crcr}}%
\def\\{\doalignNR[+][]\crcr}%
% end of compatibility mode
\numberedeqalign{#1\relax}}
%D \startbuffer
%D \placeformula \startformula \eqalignno {
%D a = b \formulanumber \cr
%D c = d \cr
%D= e \cr
%D= f \formulanumber
%D } \stopformula
%D \stopbuffer
%D
%D \typebuffer \getbuffer
%D
%D \startbuffer
%D \placeformula \startformula \startalign
%D \NC a \EQ b \NR[+]
%D \NC c \EQ d \NR
%D \NC\EQ f \NR[for:hans]
%D \NC\EQ g \NR[for:whoelse][a]
%D \NC\EQ h \NR[for:whomore][b]
%D \NC\EQ i \NR
%D \stopalign \stopformula
%D \stopbuffer
%D
%D \typebuffer \getbuffer
%D
%D \startbuffer
%D \placeformula \startformula \startalign
%D \NC a \EQ b \NR[+]
%D \NC c \EQ d \NR
%D \NC \EQ f \NR
%D \NC \EQ g \NR
%D \NC \EQ h \NR
%D \NC \EQ i \NR[+]
%D \stopalign \stopformula
%D \stopbuffer
%D
%D \typebuffer \getbuffer
%D
%D \startbuffer
%D \placeformula \startformula \startalign
%D a = b \\
%D c = d \notag \\
%D = e \notag \\
%D = f \\
%D \stopalign \stopformula
%D \stopbuffer
%D
%D \typebuffer \getbuffer
%D
%D \startbuffer
%D \placeformula \startformula \startalign
%D a = b \NR[+]
%D c = d \NR
%D = e \NR
%D = f \NR[+]
%D \stopalign \stopformula
%D \stopbuffer
%D
%D \typebuffer \getbuffer
%D
%D \startbuffer
%D \placeformula \startformula \startalign
%D \NC a \NC \eq b \NR[+]
%D \NC c \NC \neq d \NR
%D \NC\NC \neq f \NR[for:hans]
%D \NC\NC \geq g \NR[for:whoelse][a]
%D \NC\NC \leq h \NR[for:whomore][b]
%D \NC\NC \neq i \NR
%D \stopalign \stopformula
%D \stopbuffer
%D
%D \typebuffer \getbuffer
\protect \endinput
___
ntg-context mailing list
ntg-context@ntg.nl
http://www.ntg.nl/mailman/listinfo/ntg-context
Re: [NTG-context] Reg. fonts and math
--- On Jan 13, Hans Hagen wrote ---
Aditya Mahajan wrote:
No, I mean the complicated math is much harder in context. Consider
\begin{align}
a = b \\
c = d \notag \\
= f \notag \\
= g
\end{align}
which will typeset as
a = b(1)
c = d
= f
= g(2)
\begin{subequations}
\begin{align}
a = b \\
c = d
\end{align}
\end{subequations}
Compare this from how to do this in context (see the wiki). You have to
*manually* set the number of the subequation. Actually, for equation
numbering and refering, the context way is rather limited. Consider
something like an align environment
a = b\\
c = d\\
e = f
Suppose, I want to refer to the second equation. In latex, I can simply
add \label{eq:2} and the end of c= d and then \ref{eq:2}. For context, the
reference label goes at the top, with \placeformula[eqs]. But I am not
sure, how to give individual labels to each equations.
this 'loose label' is one of the ugliest concept i can think of -)
If you come up with any other way, I will be glad to use it. Frankly,
I do not think that the latex syntax is the best, but plain tex looks
too indimidating and context does not have anything yet.
btw, defaulting to numbers and then using \notag is messy; i prefer readable
code, even if it takes more bytes; inventing a formula takes more time than
keying it in. Also, more structure, means more hooks for configurability
Fine by me. Your method is perfectly acceptable.
much if this 'complicated' math is not that complicated to support,see
attached file
Wonderful. I did not know that something like this can be done so
easily in context.
i'm willing to implement anything reasonable but since i hardly use such
math i only act on 'i want to achieve this' kind of specs (i have no time to
read tons of tex documents)
Here are features that I would want context math to have. I do not
care about the input syntax (whether it is same as latex or not) as
long as the features are there.
1. Have align support with variable number of columns.
a = b
= c + d
+ e
should be typeset as
a = b
= c + d
+ e
2. Have a mechanism to individually number/not-number an equation.
3. Have a gather environment. Depending on the user option should
either center, left justify or right justify all equations. Useful
when you have a bunch of equation together and do not want to have
startforumla and stopformula after each of them.
4. In align you should be able to specify the separation between
columns. There should be some input syntax that allows you to typeset
an output like
a = b c = d
e = f g = h
It will be great if you can number each equation (i.e. four number in
the above example). There should be an option to only number each
line.
5. have a splitformula environment that allows
a = b
+ c \\
+ d
to come out as
a = b
+ c
+ e(1)
with only one formula number. The formula number should be at the last
line or the center of the whole formula, configurable by an option.
6. Allow, someway of typesetting
a = b + c
Using some result
= d + e
that is, you should be able to come out of the align mode temporarily
and then go back. Latex calls this intertext. Have some means to
adjust the before and after skips of intertext. Something like
\setupintertextskip[small or medium or big]
7. Allow some way of typesetting multilined formula where
first line is left aligned
second line after some hskip
third line after some hskip
...
last line right alinged
This should have only one formula number, either on the last line or
in the center of the display.
8. Have a version of align, gather and multiline that can be used
inside a formula. So one should be able to type
\startformula
\left.\startaligned
\NC a \NC= b \NR
\NC c \NC= d \NR
\stopaligned\right\}
\implies
\startaligned
\NC b \NC= a \NR
\NC d \NC= c \NR
\stopaligned
\stopformula
to get
a = b } = b = a
c = d } d = c
where the implies is centered between the two lined.
Have an option to make these environments come at the top, middle or
bottom of the baseline.
9. Allow easy input of multiline subscripts. Suppose I want
\sum
a b
c d
e f
10. Allow the big subscripts of math operators to be smashed to the
left or right. Suppse, I have
a \times \lim_{a very long equation} b_n
There should be a command, say \smashoperator such that
a \times \smashoperator\lim_{a very long equation} b_n
comes as
a lim b_n
a very long eq
where (a very long equation) in centered beneath the center of lim but
the bounding box is the bb of lim not the bb of the subscript
Also
a \times \smashoperator[r]\lim_{a very long equation} b_n
should come as
a lim b_n
a very lone eq
where the bounding box of a lim on the right is the bb of the lim,
on the left is the bb of the subscript.
Similarly of \smashoperator[l]
11.
Re: [NTG-context] Reg. fonts and math
Aditya Mahajan wrote:
Most math in latex is *not* same as tex math. Though, most that can be
done with latex can also be done in tex, but latex does provide a nice
interface which sadly is missing in context. amsl and nath modules
provide some of this functionality but a lot still needs to be done to
make Context math handling as easy as it is in Latex.
Do you mean that everything between $ $ and \begin{math} \end{math} is
different?
a + b
\int ...
\sqrt
etc is not different is it?
Hans
___
ntg-context mailing list
ntg-context@ntg.nl
http://www.ntg.nl/mailman/listinfo/ntg-context
Re: [NTG-context] Reg. fonts and math
On Thu, 12 Jan 2006, Hans Hagen wrote:
Aditya Mahajan wrote:
Most math in latex is *not* same as tex math. Though, most that can be done
with latex can also be done in tex, but latex does provide a nice interface
which sadly is missing in context. amsl and nath modules provide some of
this functionality but a lot still needs to be done to make Context math
handling as easy as it is in Latex.
Do you mean that everything between $ $ and \begin{math} \end{math} is
different?
a + b
\int ...
\sqrt
etc is not different is it?
No, I mean the complicated math is much harder in context. Consider
\begin{align}
a = b \\
c = d \notag \\
= f \notag \\
= g
\end{align}
which will typeset as
a = b(1)
c = d
= f
= g(2)
There is no Context way to do it, and one has to resort to plain tex
\placeformula
$$
\eqalignno{
a = b \formulanumber \cr
c = d \cr
= f \cr
= g \formulanumber}
$$
Context gives the same result, but the input syntax is much more verbose
than the latex syntax.
Latex also has a lot of other useful enviromnemts like
\begin{equation}
\begin{split}
a = b \\
= c
\end{split}
\end{equation}
Again, the same effect can be achieved in plain tex, but it is more
verbose.
amsmath also has some useful environments like multalign and aligned,
gathered, faligned, alignat, etc. Some of their functionality can be
achieved using \start stop array from amsl but the amsmath environments
have a lot more features.
There are certain features that are much more difficult to achieve using
context. Consider equation subnumbering. In latex, it is as simple as
\begin{subequations}
\begin{align}
a = b \\
c = d
\end{align}
\end{subequations}
Compare this from how to do this in context (see the wiki). You have to
*manually* set the number of the subequation. Actually, for equation
numbering and refering, the context way is rather limited. Consider
something like an align environment
a = b\\
c = d\\
e = f
Suppose, I want to refer to the second equation. In latex, I can simply
add \label{eq:2} and the end of c= d and then \ref{eq:2}. For context,
the reference label goes at the top, with \placeformula[eqs]. But I am not
sure, how to give individual labels to each equations.
Browse through http://www-sop.inria.fr/miaou/latex/voss-math.pdf which
explains almost all math tricks in latex. For some of the more complicated
stuff, compare the latex code and the context code to achieve that result.
Context has all the features, but for complicated maths, they are low
level tricks. There is no upper layer like amsmath making life easier for
the user. It will be nice to have such a layer.
Aditya
___
ntg-context mailing list
ntg-context@ntg.nl
http://www.ntg.nl/mailman/listinfo/ntg-context
