- #1

Gianni

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Hello everybody,

To compute an observable in a physical problem I need to compute the determinant of a skew matrix (http://en.wikipedia.org/wiki/Skew-symmetric_matrix#Determinant").

The straightforward way to numerically calculate this determinant is to use a lapack routine that compute the determinant for a general matrix (without symmetries). But this is not the optimal choice for big matrices.

Is there some code (preferably in Fortran, but not necessarily) to compute this determinant in a efficient way? Do I have to write it by myself?

Thank you very much!

To compute an observable in a physical problem I need to compute the determinant of a skew matrix (http://en.wikipedia.org/wiki/Skew-symmetric_matrix#Determinant").

The straightforward way to numerically calculate this determinant is to use a lapack routine that compute the determinant for a general matrix (without symmetries). But this is not the optimal choice for big matrices.

Is there some code (preferably in Fortran, but not necessarily) to compute this determinant in a efficient way? Do I have to write it by myself?

Thank you very much!

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