Thread: Latex: Determinant
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Old November 24th, 2008, 07:42 AM
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Plain TeX has a macro called \bordermatrix that lets you put labels above the columns and to the left of the rows. It can give you things like this:

M = \bordermatrix{&\overbrace{}^{\textstyle m}&\overbrace{}^{\textstyle n}\cr p\{&A&B\cr q\{&C&D\cr}

Code:
 M = \bordermatrix{&\overbrace{}^{\textstyle m}
 &\overbrace{}^{\textstyle n}\cr 
 p\{ &A&B\cr q\{ &C&D\cr}
As far as I know, there is no LaTeX version of this, so you have to use the plain TeX syntax, with for example \cr instead of \\ for the carriage returns.
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