On Sat, 10 Jan 2009, Marcin Borkowski wrote:
Hi all,
I'd like to typeset a system of simultaneous equations. I want it to
have a brace on the left (like "cases"), but inside I want it to have
two columns aligned like "align". Also, I'd like to have the vertical
space between the equations be small (like in cases), not so big as in
align.
How to do this?
I do not completely understand what you want. Do the following give the
desired output.
\starttext
\startformula
\startcases[align={right,left},distance=3pt]
\NC 2x + 3y \MC{} = 10 \NR
\NC 3x + 2y \MC{} = 5 \NR
\stopcases
\stopformula
\startformula
\startmatrix[align={right,left},distance=3pt,left={\left\{},
right={\right.}]
\NC 2x + 3y \NC{} = 10 \NR
\NC 3x + 2y \NC{} = 5 \NR
\stopmatrix
\stopformula
\stoptext
The {} after the alignment \NC is useful if the next symbol is something
that can be a uniary or binary symbol (eg, + or -). The {} tells tex to
treat is as a binary symbol.
If you frequently need something like this, you can use
definemathcases/definemathmatrix to define a new environment with
appropriate parameters.
Aditya
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