[Numpy-discussion] numpy.linalg.linalg.LinAlgError: Singular matrix

Stephen Walton drswalton at gmail.com
Wed Aug 16 18:51:24 CDT 2006

On 8/16/06, kortmann at ideaworks.com <kortmann at ideaworks.com> wrote:
> all of the variables n, st, st2, st3, st4, st5, st6, sx, sxt, sxt2, and
> sxt3 are all floats.
> A = array([[N, st, st2, st3],[st, st2, st3, st4], [st2, st3, st4, st5],
> [st3, st4, st5, st6]])
> B = array    ([sx, sxt, sxt2, sxt3])
> lina = linalg.solve(A, B)

Is your matrix A in fact singular?  Without numerical values of A, st, etc.,
it is hard to know.
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