From: Bill B. <wb...@gm...> - 2010-03-08 19:12:47
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I used pysparse successfully; very pleased with performance! I really want to do SVD but I can emulate that by finding the spectrum of A^t A and A A^t. The first is easy using dot, but how do I get the second. I would have thought there would be a built-in transpose. Should I write my own at low level or convert to another format that supports transpose? Bill |