Re: Matrix inversion

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1 total messages Started by Allan Adler Tue, 08 Sep 1992 17:46

#11

Author: Allan Adler
Date: Tue, 08 Sep 1992 17:46

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Maybe the exponent -1 is being evaluated mod 12. There are a lot of
problems like that with modular stuff, e.g. if you have a 5x5 matrix
and you are working mod 3, you will have trouble referencing the
(3,4) element correctly.

When I have to invert a matrix in positive characteristic, I first
turn modular mode off, then invert the matrix, then return to
modular.

Allan Adler
adler@risc1.acc.uri.edu

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