[SciPy-user] Logarithm of the determinant
Nils Wagner
nwagner at mecha.uni-stuttgart.de
Thu Jul 14 13:28:34 CDT 2005
Hi all,
The GSL library has a function
gsl_linalg_LU_lndet and gsl_linalg_complex_LU_lndet.
These functions compute the logarithm of the absolute
value of the determinant of a matrix A, \ln|det(A)|, from
its LU decomposition, LU. This function may be useful if
the direct computation of the determinant would overflow
or underflow.
In scipy we have only
det(a, overwrite_a=0)
det(a, overwrite_a=0) -> d
Return determinant of a square matrix.
Is it possible to add the logarithm
of a determinant in scipy ?
Nils
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