> < ^ Date: Wed, 15 Dec 1993 11:22:34 +0000
> < ^ From: Steve Linton <sal@dcs.st-and.ac.uk >
> < ^ Subject: Re: space management

Just one point out of many, but there is a better way to
do GF(2) rank.

If you convert each row of the matrix first to GF(2) and then into
a vector it will become much smaller. Furthermore the kernel
has fast vector arithmetic.

Thus mat2 := List(mat, function(row) local row2; row2 := row*Z(2); IsVector(row2); return row2; end);

will convert into GF(2) space-efficiently.


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