I submitted a patch to ticket #675: http://projects.scipy.org/scipy/ticket/675 It adds a function that generates Hadamard matrices. The code is a slightly modified version of the code submitted by Ivo in the ticket. If anyone has a moment, take a look and let me know what you think. The function is only a few lines, so a review shouldn't take long. I'd like to have at least one other set of eyes on the code before checking it in. Cheers, Warren