[Tutor] generating list of arguments for lin alg (original) (raw)
Carla A. Ng c-ng at northwestern.edu
Thu Jul 15 19:34:05 CEST 2004
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I'm fairly new to Python and have just gotten into using numarray...
I have a large system of equations I need to solve simultaneously (92 eqn's and unknowns) but haven't found a handy way to generate a list of the 92 unknowns, and I certainly don't want to have to type them all in to do it... The system I'm trying to solve is essentially:
dNi=sum(Wij * dNj) Where dN is a 92x1 vector and W is a 92x92 matrix.
since the value of each dNi depends on the value of the dNj that it is related to via the matrix W, I can't see an easy way to do this by simply inverting W. Also, only a handful of the elements of dN are known at the beginning.
Any suggestions?
Thanks! Carla
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