The current project I'm working on needs to do a lot of matrix multiplications, of the form
B * D * B.T where D is a symmetric positive semi-definite matrix with rational entries, B is a matrix with rational entries, and B * B.T is a diagonal matrix (not necessarily the identity - i.e. the rows are orthogonal, but not orthonormal, if those are the correct terms). I was wondering if Sage will make use of the specific set-up here to speed up the matrix product? And if not, is there a faster way to do it? Thanks, Emil -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
