On Fri, 23 May 2014, Matthias Weber wrote:

Dear All,

I would like to define a command that expands

\vector{2,4} % or vector[2,4] if that’s easier

to

\startpmatrix
\NC 2 \NR
\NC 4 \NR
\stoppmatrix

and more generally

\vector{2,4,1,7}

to

\startpmatrix
\NC 2 \NR
\NC 4 \NR
\NC 1 \NR
\NC 7 \NR
\stoppmatrix

Any hints how to achieve this?

Surprisingly, this is not as simple as it may seem at first glance. Some time ago, I had written a module to achieve this. See attached. The usage is:

\usemodule[simplematrix]

\definesimplematrix[MATRIX][fence=bracket]

(any predefined math-fence will work) and then:

\MATRIX{1,2,3} for row vectors and \MATRIX{1;2;3} for column vectors, and \MATRIX{1,2,3; 4,5,6} for matrices.

You can use \definesimplematrix[...][distance=..., align=...] to influence the distance and align keys of mathmatrix.

Aditya<t-simplematrix.mkvi>___________________________________________________________________________________
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
___________________________________________________________________________________