From: luigi scarso <luigi.scarso@gmail.com>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: Simple command with variable number of arguments
Date: Fri, 23 May 2014 13:44:30 +0200 [thread overview]
Message-ID: <CAG5iGsCadu33Hw=hPhmDe+Wp1B_FcPjN0CaXwJAso+vnQBJEtA@mail.gmail.com> (raw)
In-Reply-To: <6EAF5FDE-7BE4-4766-B683-FA9994227A04@indiana.edu>
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On Fri, May 23, 2014 at 11:54 AM, Matthias Weber <matweber@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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next prev parent reply other threads:[~2014-05-23 11:44 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-23 9:54 Matthias Weber
2014-05-23 10:08 ` Otared Kavian
2014-05-23 10:55 ` Matthias Weber
2014-05-23 10:56 ` Aditya Mahajan
2014-05-23 11:14 ` Matthias Weber
2014-05-23 11:37 ` Aditya Mahajan
2014-05-23 12:08 ` Matthias Weber
2014-05-23 11:44 ` luigi scarso [this message]
2014-05-23 12:12 ` Matthias Weber
[not found] <mailman.56.1400848757.2240.ntg-context@ntg.nl>
2014-05-23 13:48 ` Jeong Dal
2014-05-23 18:00 ` Hans Hagen
[not found] ` <537FA66D.3000608@wxs.nl>
2014-05-24 0:36 ` Jeong Dal
2014-05-24 6:55 ` Jeong Dal
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