[SciPy-user] Sparse linear equation solver

Nils Wagner nwagner at mecha.uni-stuttgart.de
Wed Oct 20 04:27:43 CDT 2004

Hi all,

How do I solve large sparse systems of equations in scipy.
Assume that the coefficient matrix is given in MatrixMarket format.

Which package is currently used in scipy (Super-LU, UMFPACK) ?

How do I multiply a sparse matrix with a vector ?

Can I use complex matrices ?

How do I generate a bordered matrix in sparse format
e.g. [A , x; x^H , 0]
A small example would be appreciated.


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