On 09/04/15 11:05, Jori Mantysalo wrote:
On Thu, 9 Apr 2015, Vincent Delecroix wrote:
Sorry to insist. I really do not like the keyword algorithm here. The
fact that the output is a unimodular matrix has nothing to do with the
algorithm used to generate it!
True.
Some properties of matrices do not mix: skew symmetric vs. symmetrix.
Some combinations are quite silly: upper triangular + lower triangular =
diagonal. And some can be mixed: unimodular + [upper|lower] triangular
is meaningful.
Right. And having thousands of keywords is not very useful. We can
regroup some of them:
bilinear forms:
{skew-symmetric, symmetric, orthogonal, ...}
shape:
{upper triangular, lower triangular, diagonal, max_width, ...}
conjugacy class invariants
{determinant, trace, characteristic polynomial, ...}
Could move this discussion to the ticket?
Vincent
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