Thanks Luigi! Now I have a lot to play with… Matthias
On May 23, 2014, at 7:44 AM, luigi scarso <luigi.sca...@gmail.com> wrote:
>
>
>
> On Fri, May 23, 2014 at 11:54 AM, Matthias Weber <matwe...@indiana.edu> 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?
>
> Thanks,
>
>
>
> \definemathmatrix
> [pmatrix]
> [left={\left(\,},right={\,\right)}]
>
> \startluacode
> document = document or {}
> document.matthias = document.matthias or {}
> local function lua_columnvector(a)
> context.startpmatrix()
> for i,v in ipairs(a) do
> context.NC() context(tostring(v)) context.NR()
> end
> context.stoppmatrix()
> end
> document.matthias.lua_columnvector = document.matthias.lua_columnvector or
> lua_columnvector
> \stopluacode
>
> \def\columnvector#1{\ctxlua{document.matthias.lua_columnvector(#1)}}
>
> \starttext
> \startformula
> \columnvector{{1,2,3}} %% watch the double { !
> \stopformula
>
>
> \stoptext
>
> --
> luigi
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___________________________________________________________________________________ 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 ___________________________________________________________________________________
