Smallmatrix not implemented

Smallmatrix not implemented

[Hans Aberg]

Smallmatrix from AMS-TeX is not implemented in ConTeXt (Tex Live 2015), though crossed out in m-newmat.tex. I found this old post:
  http://www.ntg.nl/pipermail/ntg-context/2005/013146.html


___________________________________________________________________________________
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
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: Smallmatrix not implemented

[Wolfgang Schuster]

[-- Attachment #1.1: Type: text/plain, Size: 603 bytes --]


> Hans Aberg <mailto:haberg-1@telia.com>
> 6. Juli 2015 11:03
> Smallmatrix from AMS-TeX is not implemented in ConTeXt (Tex Live 
> 2015), though crossed out in m-newmat.tex. I found this old post:
> http://www.ntg.nl/pipermail/ntg-context/2005/013146.html

You can create your own matrix environment for inline use:

\definemathmatrix
   [smallmatrix]
   [left=\Big(,
    right=\Big),
    style=\scriptstyle,
    strut=0.7,
    distance=.25em]

\starttext

This is a example \m{ \startsmallmatrix \NC a \NC b \NR \NC c \NC d \NR 
\stopsmallmatrix } for a smallmatrix environment.

\stoptext

Wolfgang

[-- Attachment #1.2: Type: text/html, Size: 1777 bytes --]

[-- Attachment #2: Type: text/plain, Size: 485 bytes --]

___________________________________________________________________________________
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
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________

Re: Smallmatrix not implemented

[Hans Aberg]

[I do not get copies from the list, though having signed up.]

>> Smallmatrix from AMS-TeX is not implemented in ConTeXt (Tex Live 2015), though crossed out in m-newmat.tex.
> 
> You can create your own matrix environment for inline use:
> 
> \definemathmatrix
>    [smallmatrix]
>    [left=\Big(,
>     right=\Big),
>     style=\scriptstyle,
>     strut=0.7,
>     distance=.25em]
> 
> \starttext
> 
> This is a example \m{ \startsmallmatrix \NC a \NC b \NR \NC c \NC d \NR 
> \stopsmallmatrix } for a smallmatrix environment.

It looks pretty much like the AMS-LaTeX variation. Below is another example of use, as a displayed formula.


----
% Defines a small two-by-two matrix.
\def\twomatrix#1#2#3#4{\startsmallmatrix\NC{#1}\NC{#2}\NR\NC{#3}\NC{#4}\NR\stopsmallmatrix}

% The Pauli spin matrices, explicit forms.
\def\pspint{{\twomatrix1001}}
\def\pspinx{{\twomatrix0110}}
\def\pspiny{{\twomatrix0{-𝕚}𝕚0}}
\def\pspinz{{\twomatrix100{-1}}}

Pauli spin matrices
\startformula
  σ^0 ≔ \pspint, \quad σ^3 ≔ \pspinz, \quad
  σ^1 ≔ \pspinx, \quad σ^2 ≔ \pspiny
\stopformula
----

___________________________________________________________________________________
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
webpage  : http://www.pragma-ade.nl / http://tex.aanhet.net
archive  : http://foundry.supelec.fr/projects/contextrev/
wiki     : http://contextgarden.net
___________________________________________________________________________________