Re: [NTG-context] mathmatrix and internal lines

[Taco Hoekwater]

> On 29 Nov 2020, at 08:48, Otared Kavian  wrote:
> 
>> On 26 Nov 2020, at 23:23, Hans Hagen  wrote:
>> […]
>> A bit more code needed but the next upload will have it. Of course you have 
>> to wikify it.
>> 
>> Hans
> 
> Hi,
> I created a page on the wiki:
>   https://wiki.contextgarden.net/Matrix_in_maths
> However the LMTX code is not typeset on the wiki. I'll see with taco whether 
> it is possible to have lmtx mode on the wiki.

I plan to update the lmtx on the wiki sometime between now and new years’ eve. 
Sorry, I can not be more precise right now.

Best wishes,
Taco
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Re: [NTG-context] mathmatrix and internal lines

[Otared Kavian]

Great! Well done. 
I'll ask Taco about LMTX on the wiki.

Best regards: Otared

> On 29 Nov 2020, at 19:59, Jean-Philippe Rey 
>  wrote:
> 
> I added some details and examples to the wiki, however, as you said, they are 
> not typeset correctly.
> 
>> Le 29 nov. 2020 à 08:48, Otared Kavian > > a écrit :
>> 
>>> On 26 Nov 2020, at 23:23, Hans Hagen >> > wrote:
>>> […]
>>> A bit more code needed but the next upload will have it. Of course you have 
>>> to wikify it.
>>> 
>>> Hans
>> 
>> Hi,
>> I created a page on the wiki:
>>  https://wiki.contextgarden.net/Matrix_in_maths 
>> 
>> However the LMTX code is not typeset on the wiki. I'll see with taco whether 
>> it is possible to have lmtx mode on the wiki.
>> 
>> Best regards: Otared K.
> 
> -- 
> Jean-Philippe Rey
> jean-philippe@centralesupelec.fr 
> 
> 91192 Gif-sur-Yvette Cedex - France
> Empreinte PGP : 807A 5B2C 69E4 D4B5 783A 428A 1B5E E83E 261B BF51
> 
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Re: [NTG-context] mathmatrix and internal lines

[Jean-Philippe Rey]

I added some details and examples to the wiki, however, as you said, they are 
not typeset correctly.

> Le 29 nov. 2020 à 08:48, Otared Kavian  a écrit :
> 
>> On 26 Nov 2020, at 23:23, Hans Hagen > > wrote:
>> […]
>> A bit more code needed but the next upload will have it. Of course you have 
>> to wikify it.
>> 
>> Hans
> 
> Hi,
> I created a page on the wiki:
>   https://wiki.contextgarden.net/Matrix_in_maths 
> 
> However the LMTX code is not typeset on the wiki. I'll see with taco whether 
> it is possible to have lmtx mode on the wiki.
> 
> Best regards: Otared K.

-- 
Jean-Philippe Rey
jean-philippe@centralesupelec.fr 

91192 Gif-sur-Yvette Cedex - France
Empreinte PGP : 807A 5B2C 69E4 D4B5 783A 428A 1B5E E83E 261B BF51

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Re: [NTG-context] mathmatrix and internal lines

[Otared Kavian]

> On 26 Nov 2020, at 23:23, Hans Hagen  wrote:
> […]
> A bit more code needed but the next upload will have it. Of course you have 
> to wikify it.
> 
> Hans

Hi,
I created a page on the wiki:
https://wiki.contextgarden.net/Matrix_in_maths 

However the LMTX code is not typeset on the wiki. I'll see with taco whether it 
is possible to have lmtx mode on the wiki.

Best regards: Otared K.___
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Re: [NTG-context] mathmatrix and internal lines

[Hans Hagen]

On 11/27/2020 10:07 AM, Otared Kavian wrote:

Hi Hans,

Thanks for your insight!
Indeed I'll wikify what you explained, once I have tested it with the next 
upload. Would  \HL and \VL be also available in mkiv ?

Dunno yet ... it's not that hard but I'm in lmtx mode now.

Hans

-
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  Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
   tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
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Re: [NTG-context] mathmatrix and internal lines

[Otared Kavian]

Hi Hans,

Thanks for your insight!
Indeed I'll wikify what you explained, once I have tested it with the next 
upload. Would  \HL and \VL be also available in mkiv ?

Best regards: Otared

> On 26 Nov 2020, at 23:23, Hans Hagen  wrote:
> 
> On 11/26/2020 8:43 PM, Otared Kavian wrote:
>> Hi Jean-Philippe,
>> A few weeks ago I saw briefly the discussion about Hans' message regarding 
>> \noalign and the the new definitions of \HR and \VR that you are sending. 
>> Indeed your solution works great !
>> Just for the case other people may have the same question about writing 
>> block matrix, I copy below the whole example which can be found later in the 
>> mail archive.
>> (For mkiv, I don't know how to do the same thing…).
> 
> The \noaligned permits a \protected definition. Otherwise one has to do 
> something
> 
> \def\VR{\noalign\bgroup
>   
> that command then does the rule and ends the noalign. Also, that one cannot 
> be \protected (a pitty in case one uses \expanded or so)
> 
> So ... a multistep approach. Plenty of that in mkiv.
> 
>> %%% begin block-matrix.tex
>> % in LMTX defining \HR and \VR to create block matrices:
>> \pushoverloadmode
>> \noaligned\tolerant\protected\def\HR[#1]{\noalign{\hrule #1}}
>> \popoverloadmode
>> \def\VR{\dosingleempty\doVR}
>> \def\doVR[#1]{\NC \hskip-0.5em \vrule #1 \hskip-0.5em \NC}
> 
> given the \HR definition that should be
> 
> \tolerant\protected\def\VR[#1]{\NC ...\NC}
> 
>> \definemathmatrix[mymatrix]
>>  [left={\left(\,},
>>  right={\, \right)}]
>> \starttext   
>> \startformula
>>  \startmymatrix
>>  \NC A \VR  B \NR
>>  \HR
>>  \NC C \VR  D \NR
>>  \stopmymatrix
>> \stopformula
>> \stoptext
> 
> Anyway, a feature like this should be in sync with other table mechanisms, so
> 
> \definemathmatrix
>  [mymatrix]
>  [left={\left\lparent\thinspace},
>   right={\thinspace\right\rparent}]
> 
> \starttext
> 
> \startformula
>   \startmymatrix
>   \NC A \VL  B \NR
>   \HL
>   \NC C \VL  D \NR
>   \stopmymatrix
> \stopformula
> 
> \startformula
>   \startmymatrix
>   \NC A \VL[3,green]  B \NR
>   \HL[10,red]
>   \NC C \VL  D \NR
>   \stopmymatrix
> \stopformula
> 
> \stoptext
> 
> A bit more code needed but the next upload will have it. Of course you have 
> to wikify it.
> 
> Hans
> 
> -
>  Hans Hagen | PRAGMA ADE
>  Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
>   tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
> -

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Re: [NTG-context] mathmatrix and internal lines

[Hans Hagen]

On 11/26/2020 8:43 PM, Otared Kavian wrote:

Hi Jean-Philippe,

A few weeks ago I saw briefly the discussion about Hans' message regarding 
\noalign and the the new definitions of \HR and \VR that you are sending. 
Indeed your solution works great !
Just for the case other people may have the same question about writing block 
matrix, I copy below the whole example which can be found later in the mail 
archive.
(For mkiv, I don't know how to do the same thing…).


The \noaligned permits a \protected definition. Otherwise one has to do 
something


\def\VR{\noalign\bgroup
  that command then does the rule and ends the noalign. Also, that one 
cannot be \protected (a pitty in case one uses \expanded or so)


So ... a multistep approach. Plenty of that in mkiv.


%%% begin block-matrix.tex
% in LMTX defining \HR and \VR to create block matrices:
\pushoverloadmode
\noaligned\tolerant\protected\def\HR[#1]{\noalign{\hrule #1}}
\popoverloadmode

\def\VR{\dosingleempty\doVR}
\def\doVR[#1]{\NC \hskip-0.5em \vrule #1 \hskip-0.5em \NC}


given the \HR definition that should be

\tolerant\protected\def\VR[#1]{\NC ...\NC}


\definemathmatrix[mymatrix]
[left={\left(\,},
right={\, \right)}]

\starttext  

\startformula
\startmymatrix
\NC A \VR  B \NR
\HR
\NC C \VR  D \NR
\stopmymatrix
\stopformula

\stoptext


Anyway, a feature like this should be in sync with other table 
mechanisms, so


\definemathmatrix
  [mymatrix]
  [left={\left\lparent\thinspace},
   right={\thinspace\right\rparent}]

\starttext

\startformula
\startmymatrix
\NC A \VL  B \NR
\HL
\NC C \VL  D \NR
\stopmymatrix
\stopformula

\startformula
\startmymatrix
\NC A \VL[3,green]  B \NR
\HL[10,red]
\NC C \VL  D \NR
\stopmymatrix
\stopformula

\stoptext

A bit more code needed but the next upload will have it. Of course you 
have to wikify it.


Hans

-
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  Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
   tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
-
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Re: [NTG-context] mathmatrix and internal lines

[Otared Kavian]

Hi Jean-Philippe,

A few weeks ago I saw briefly the discussion about Hans' message regarding 
\noalign and the the new definitions of \HR and \VR that you are sending. 
Indeed your solution works great !
Just for the case other people may have the same question about writing block 
matrix, I copy below the whole example which can be found later in the mail 
archive.
(For mkiv, I don't know how to do the same thing…).

%%% begin block-matrix.tex
% in LMTX defining \HR and \VR to create block matrices:
\pushoverloadmode
\noaligned\tolerant\protected\def\HR[#1]{\noalign{\hrule #1}}
\popoverloadmode

\def\VR{\dosingleempty\doVR}
\def\doVR[#1]{\NC \hskip-0.5em \vrule #1 \hskip-0.5em \NC}

\definemathmatrix[mymatrix]
[left={\left(\,},
right={\, \right)}]

\starttext  

\startformula
\startmymatrix
\NC A \VR  B \NR
\HR
\NC C \VR  D \NR
\stopmymatrix
\stopformula

\stoptext
%%% end block-matrix.tex

Best regards: Otared K.

> On 26 Nov 2020, at 19:46, Jean-Philippe Rey 
>  wrote:
> 
> Hi Otared,
> 
> Thank you very much.
> 
> I used your example to write the following macros. They are far from perfect 
> but suit my needs.  A few days ago, Hans warned not to use \noalign in LMTX, 
> so I used the trick he gave to the list even if I don't really understand it.
> 
> === LMTX version 
> %D \macros{HR, VR}
> %D \type{\HR} draws a horizontal rule between two rows of a matrix
> %D \type{\VR} is used in place of \type{\NC} to draw a vertical rule between 
> two columns of a matrix
> %D each macro takes an optional parameter giving the rule dimensions
> %D Example
> %D  \type{\startmatrix \NC A \VR[depth 2mm] B \NR \HR[height 0.6pt] \NC C \VR 
> D \NR \stopmatrix}
>  
> \pushoverloadmode
> \noaligned\tolerant\protected\def\HR[#1]{\noalign{\hrule #1}}
> \popoverloadmode
> 
> \def\VR{\dosingleempty\doVR}
> \def\doVR[#1]{\NC \hskip-0.5em \vrule #1 \hskip-0.5em \NC}
> ===
> 
> === MkIV version 
> %D \macros{HR, VR}
> %D \type{\HR} draws a horizontal rule between two rows of a matrix
> %D \type{\VR} is used in place of \type{\NC} to draw a vertical rule between 
> two columns of a matrix
> %D it takes an optional parameter giving the rule dimensions
> %D Example
> %D  \type{\startmatrix \NC A \VR[depth 2mm] B \NR \HR \NC C \VR D \NR 
> \stopmatrix}
>  
> \def\HR{\noalign{\hrule}}
> 
> \def\VR{\dosingleempty\doVR}
> \def\doVR[#1]{\NC \hskip-0.5em \vrule #1 \hskip-0.5em \NC}
> ===
> 
> For the MkIV version I haven't been able to add an optional parameter to \HR 
> the code
> 
> \def\HR{\dosingleempty\doHR}
> \def\doHR[#1]{\noalign{\hrule #1}}
> 
> complains about "Misplaced \noalign"
> 
> Best regards,
> 
> 
> 
>> Le 26 nov. 2020 à 13:40, Otared Kavian  a écrit :
>> 
>> Hi Jean-Philippe,
>> 
>> The following is better than the one I sent earlier:
>> 
>> \definemathmatrix[mymatrix]
>>  [left={\left(\,},
>>  right={\ \right)}]
>>  
>> \starttext
>> \startformula
>>  \startmymatrix
>>  \NC A \NC\hskip-.5em \vrule  \NC\hskip-.5em B \NR
>>  \noalign{\hrule}
>>  \NC C \NC \hskip-.5em\vrule \NC \hskip-.5em D \NR
>>  \stopmymatrix
>> \stopformula
>> \stoptext
>> 
>> Best regards: Otared K.
>> 
>>> On 26 Nov 2020, at 10:19, Jean-Philippe Rey 
>>>  wrote:
>>> 
>>> Dear list,
>>> 
>>> I would like to draw matrices with internal lines as can be done with LaTeX 
>>> (cf pdf output) :
>>> 
>>> 
>>> \documentclass{article}
>>> \begin{document}
>>> $M =\left( \begin{array}{c|c}
>>> A & B \\
>>> \hline
>>> C & D \\
>>> \end{array} \right)$
>>> \end{document}
>>> 
>>> 
>>> I didn't find out how to use mathmatrix to achieve this. My best result to 
>>> date is 
>>> 
>>> 
>>> \starttext
>>> $M = \left( \bTABLE[frame=off]
>>> \bTR
>>> \bTD[rightframe=on, bottomframe=on] $A$ \eTD
>>> \bTD[bottomframe=on] $B$ \eTD
>>> \eTR\bTR
>>> \bTD[rightframe=on] $C$ \eTD
>>> \bTD $D$ \eTD
>>> \eTR
>>> \eTABLE \right)$
>>> \stoptext
>>> 
>>> 
>>> The code is rather ugly, and I get a spurious space at the bottom of the 
>>> table.
>>> 
>>> Any hints?
>>> 
>>> Thank you,
> 
> -- 
> Jean-Philippe Rey
> jean-philippe@centralesupelec.fr
> 91192 Gif-sur-Yvette Cedex - France
> Empreinte PGP : 807A 5B2C 69E4 D4B5 783A 428A 1B5E E83E 261B BF51
> 
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Re: [NTG-context] mathmatrix and internal lines

[Jean-Philippe Rey]

Hi Otared,

Thank you very much.

I used your example to write the following macros. They are far from perfect 
but suit my needs.  A few days ago, Hans warned not to use \noalign in LMTX, so 
I used the trick he gave to the list even if I don't really understand it.

=== LMTX version 
%D \macros{HR, VR}
%D \type{\HR} draws a horizontal rule between two rows of a matrix
%D \type{\VR} is used in place of \type{\NC} to draw a vertical rule between 
two columns of a matrix
%D each macro takes an optional parameter giving the rule dimensions
%D Example
%D  \type{\startmatrix \NC A \VR[depth 2mm] B \NR \HR[height 0.6pt] \NC C \VR D 
\NR \stopmatrix}
 
\pushoverloadmode
\noaligned\tolerant\protected\def\HR[#1]{\noalign{\hrule #1}}
\popoverloadmode

\def\VR{\dosingleempty\doVR}
\def\doVR[#1]{\NC \hskip-0.5em \vrule #1 \hskip-0.5em \NC}
===

=== MkIV version 
%D \macros{HR, VR}
%D \type{\HR} draws a horizontal rule between two rows of a matrix
%D \type{\VR} is used in place of \type{\NC} to draw a vertical rule between 
two columns of a matrix
%D it takes an optional parameter giving the rule dimensions
%D Example
%D  \type{\startmatrix \NC A \VR[depth 2mm] B \NR \HR \NC C \VR D \NR 
\stopmatrix}
 
\def\HR{\noalign{\hrule}}

\def\VR{\dosingleempty\doVR}
\def\doVR[#1]{\NC \hskip-0.5em \vrule #1 \hskip-0.5em \NC}
===

For the MkIV version I haven't been able to add an optional parameter to \HR 
the code

\def\HR{\dosingleempty\doHR}
\def\doHR[#1]{\noalign{\hrule #1}}

complains about "Misplaced \noalign"

Best regards,



> Le 26 nov. 2020 à 13:40, Otared Kavian  a écrit :
> 
> Hi Jean-Philippe,
> 
> The following is better than the one I sent earlier:
> 
> \definemathmatrix[mymatrix]
>   [left={\left(\,},
>   right={\ \right)}]
>   
> \starttext
> \startformula
>   \startmymatrix
>   \NC A \NC\hskip-.5em \vrule  \NC\hskip-.5em B \NR
>   \noalign{\hrule}
>   \NC C \NC \hskip-.5em\vrule \NC \hskip-.5em D \NR
>   \stopmymatrix
> \stopformula
> \stoptext
> 
> Best regards: Otared K.
> 
>> On 26 Nov 2020, at 10:19, Jean-Philippe Rey 
>>  wrote:
>> 
>> Dear list,
>> 
>> I would like to draw matrices with internal lines as can be done with LaTeX 
>> (cf pdf output) :
>> 
>> 
>> \documentclass{article}
>> \begin{document}
>> $M =\left( \begin{array}{c|c}
>> A & B \\
>> \hline
>> C & D \\
>> \end{array} \right)$
>> \end{document}
>> 
>> 
>> I didn't find out how to use mathmatrix to achieve this. My best result to 
>> date is 
>> 
>> 
>> \starttext
>> $M = \left( \bTABLE[frame=off]
>> \bTR
>>  \bTD[rightframe=on, bottomframe=on] $A$ \eTD
>>  \bTD[bottomframe=on] $B$ \eTD
>> \eTR\bTR
>>  \bTD[rightframe=on] $C$ \eTD
>>  \bTD $D$ \eTD
>> \eTR
>> \eTABLE \right)$
>> \stoptext
>> 
>> 
>> The code is rather ugly, and I get a spurious space at the bottom of the 
>> table.
>> 
>> Any hints?
>> 
>> Thank you,


-- 
Jean-Philippe Rey
jean-philippe@centralesupelec.fr 

91192 Gif-sur-Yvette Cedex - France
Empreinte PGP : 807A 5B2C 69E4 D4B5 783A 428A 1B5E E83E 261B BF51

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Re: [NTG-context] mathmatrix and internal lines

[Otared Kavian]

Hi Jean-Philippe,

The following is better than the one I sent earlier:

\definemathmatrix[mymatrix]
[left={\left(\,},
right={\ \right)}]

\starttext
\startformula
\startmymatrix
\NC A \NC\hskip-.5em \vrule  \NC\hskip-.5em B \NR
\noalign{\hrule}
\NC C \NC \hskip-.5em\vrule \NC \hskip-.5em D \NR
\stopmymatrix
\stopformula
\stoptext

Best regards: Otared K.

> On 26 Nov 2020, at 10:19, Jean-Philippe Rey 
>  wrote:
> 
> Dear list,
> 
> I would like to draw matrices with internal lines as can be done with LaTeX 
> (cf pdf output) :
> 
> 
> \documentclass{article}
> \begin{document}
> $M =\left( \begin{array}{c|c}
> A & B \\
> \hline
> C & D \\
> \end{array} \right)$
> \end{document}
> 
> 
> I didn't find out how to use mathmatrix to achieve this. My best result to 
> date is 
> 
> 
> \starttext
> $M = \left( \bTABLE[frame=off]
> \bTR
>   \bTD[rightframe=on, bottomframe=on] $A$ \eTD
>   \bTD[bottomframe=on] $B$ \eTD
> \eTR\bTR
>   \bTD[rightframe=on] $C$ \eTD
>   \bTD $D$ \eTD
> \eTR
> \eTABLE \right)$
> \stoptext
> 
> 
> The code is rather ugly, and I get a spurious space at the bottom of the 
> table.
> 
> Any hints?
> 
> Thank you,
> 
> -- 
> Jean-Philippe Rey
> jean-philippe@centralesupelec.fr
> 91192 Gif-sur-Yvette Cedex - France
> Empreinte PGP : 807A 5B2C 69E4 D4B5 783A 428A 1B5E E83E 261B BF51
> ___
> If your question is of interest to others as well, please add an entry to the 
> Wiki!
> 
> maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context
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> wiki : http://contextgarden.net
> ___

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Re: [NTG-context] mathmatrix and internal lines

[Otared Kavian]

Hi Jean-Philippe,

For a simple case like the one you sent, a rather not optimal solution can be 
this:

\definemathmatrix[mymatrix]
[left={\left(\,},
right={\ \right)}]

\starttext
\startformula
\startmymatrix
\NC A \hskip .5em |\hskip-.5em  \NC B \NR
\noalign{\hrule}
\NC C \hskip .5em |\hskip-.5em \NC D \NR
\stopmymatrix
\stopformula
\stoptext

However I think I have seen sometime ago a more elegant solution, but I could 
not find it right now…

Best regards: Otared K.

> On 26 Nov 2020, at 10:19, Jean-Philippe Rey 
>  wrote:
> 
> Dear list,
> 
> I would like to draw matrices with internal lines as can be done with LaTeX 
> (cf pdf output) :
> 
> 
> \documentclass{article}
> \begin{document}
> $M =\left( \begin{array}{c|c}
> A & B \\
> \hline
> C & D \\
> \end{array} \right)$
> \end{document}
> 
> 
> I didn't find out how to use mathmatrix to achieve this. My best result to 
> date is 
> 
> 
> \starttext
> $M = \left( \bTABLE[frame=off]
> \bTR
>   \bTD[rightframe=on, bottomframe=on] $A$ \eTD
>   \bTD[bottomframe=on] $B$ \eTD
> \eTR\bTR
>   \bTD[rightframe=on] $C$ \eTD
>   \bTD $D$ \eTD
> \eTR
> \eTABLE \right)$
> \stoptext
> 
> 
> The code is rather ugly, and I get a spurious space at the bottom of the 
> table.
> 
> Any hints?
> 
> Thank you,
> 
> -- 
> Jean-Philippe Rey
> jean-philippe@centralesupelec.fr
> 91192 Gif-sur-Yvette Cedex - France
> Empreinte PGP : 807A 5B2C 69E4 D4B5 783A 428A 1B5E E83E 261B BF51
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