Comment #9 on issue 2759 by [email protected]: Implement the forumlas from
the matrix cookbook
http://code.google.com/p/sympy/issues/detail?id=2759
That's cool. The original motivation of this issue was that I was talking
to a guy at the GSoC mentor summit in 2011 (I forgot his name). He uses
Python to generate machine learning algorithms. The basic idea is that you
have some matrix expression representing what you are trying to compute,
and then you take the derivative and set it equal to zero to minimize
something. The end result of course is to do actual computations in the
matrix expresion that is generated. For now, he does the symbolics by hand,
because there aren't really any symbolic packages that can handle the
matrix cookbook rules (from what he was telling me).
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