Determinant of Large Matrix
jr244 at kent.ac.uk
Wed Jun 6 20:05:42 CEST 2007
James Stroud wrote:
> Hello All,
> I'm using numpy to calculate determinants of matrices that look like
> this (13x13):
> [[ 0. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1. 1.]
> But I have a feeling I'm exceeding the capacity of floats here. Does
> anyone have an idea for how to treat this? Is it absurd to think I could
> get a determinant of this matrix? Is there a python package that could
> help me?
> Many thanks for any answers.
in order to verify that this result is correct, you could get the
eigenvector and eigenvalues of this matrix (for example with
numpy.linalg.eig) and check that they make sense; the determinant simply
is the product of all the eigenvalues.
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