[SciPy-user] determinant of a sparse matrix
Giampaolo Cuoghi
jpaul74@gmail....
Sat Dec 20 07:32:53 CST 2008
Hi everybody,
I'm using scipy for quantum mechanical computation, in particular for
solve sparse linear system Ax=b.
In a particular problem I haven't to solve the linear system Ax=b (with
A=sparse matrix) but only compute the determinant of A, and compare it
with zero.
Is it possible, in scipy, the computation of the determinant of a sparse
matrix?
I've tried to use: linalg.det(A.todense()) but this function use a lot
of memory.
Thanks.
Giampaolo Cuoghi
Physics Department, University of Modena (Italy)
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