From: Aditya Mahajan <adityam@umich.edu>
To: mailing list for ConTeXt users <ntg-context@ntg.nl>
Subject: Re: Math align with \startcases
Date: Mon, 19 Jan 2009 09:38:33 -0500 (EST) [thread overview]
Message-ID: <alpine.LNX.2.00.0901190937480.4250@ybpnyubfg.ybpnyqbznva> (raw)
In-Reply-To: <AB4147F2-5A99-4A7B-8D33-AC3FFD5C3D55@gmail.com>
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On Mon, 19 Jan 2009, Otared Kavian wrote:
> Hi everyone,
>
> This question is primarily intended for Aditya… but I guess other fellows on
> the list can also help me solve the following alignment problem:
> Is it possible to have an alignment like the rsult of the following with
> \startcases...\stopcases?
>
> \starttext
>
> \startformula
> \startmatrix[align={right,left,right},distance=3pt,left={\left\{},
> right={\right.}]
> \NC -\Delta u + g(u) \NC{} = f \NC \quad\mbox{in } \Omega\NR
> \NC \displaystyle {\partial u \over \partial {\bf n} } \NC{} = h(u) \NC
> \quad\mbox{on } \partial\Omega \NR
> \stopmatrix
> \stopformula
>
> \stoptext
>
> Actually I used to have such alignments with the following structure (in good
> old plain TeX...):
>
> \starttext
>
> \startformula
> \cases{
> \eqalign{
> -\Delta u + g(u) &= f \cr
> \displaystyle {\partial u \over \partial {\bf n} } &= h(u) \cr
> } \quad \eqalign{
> &\hbox{in } \Omega \cr
> &\vphantom{{\partial u \over \partial {\bf n} }} \hbox{on } \partial\Omega
> \cr
> }
> }
> \stopformula
>
> \stoptext
>
> (which gives approximately the same result as the first example above, but
> clearly the math-alignment structure set up by Aditya and Hans is much more
> elegant. (Although I prefer the vertical distance between the lines obtained
> with my plain TeX structure: by the way is it possible to fine tune such
> things in ConTeXt).
> So my question is: whether one can use \startcases ...\stopcases instead of
> \startmatrix ... \stopmatrix in order to obtain the result of the plain TeX
> example?
No, but there is not much difference between cases and matrix. Consider:
\definemathmatrix[alignedcase]
[align={right,left,right},distance=3pt,left={\left\{}, right={\right.},style=\displaystyle]
\starttext
\startformula
\startalignedcase
\NC -\Delta u + g(u) \NC{} = f \NC \quad\mbox{in } \Omega\NR
\NC {\partial u \over \partial {\bf n} } \NC{} = h(u) \NC \quad\mbox{on
} \partial\Omega \NR
\stopalignedcase
\stopformula
Aditya
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next prev parent reply other threads:[~2009-01-19 14:38 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-19 10:49 Otared Kavian
2009-01-19 14:38 ` Aditya Mahajan [this message]
2009-01-19 18:05 ` Otared Kavian
2009-01-19 18:49 ` Aditya Mahajan
2009-01-19 21:10 ` Otared Kavian
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