Hi all, What is the recommended way of doing sparse matrix manipulations in NumPy? I read about Travis Oliphant's SparsePy http://pylab.sourceforge.net/ but on that web page, the links are broken (the tarball file fails). Also, this is version 0.1, and has not been updated in a long time. Are there any others? If anybody has a copy of the SparsePy source, could you make it available to me? (also it would be good if somebody could repair Travis Oliphant's page; I tried to notify him, but don't think I had the correct email). Has anybody tried compiling SparsePy under Windows? It seems tricky, given that it needs a Fortran compiler. I was thinking of trying Cygwin, but not sure if I can get it to link with the ActiveState python compiled with Microsoft tools. Thanks, -- Martin