If all your matrices are 4 x 4, then it would be beneficial to write
a special routine just for that size - purely algebraic, instead of
searching for pivots, reshuffling coordinates, etc.
- Pete DeLong
On 1 Nov 2007, at 04:23, Daniel J Farrell wrote:
Hello,
I want to know the fastest way to calculate the determinant of a 4x4
matrix on the Mac? Can the accelerate framework help here?
Currently, I link to GNU Scientific Library's (GSL) cblas, which
operate on gsl_matrix data-types. Would linking to the Apple library
be a better idea?
From profiling, my code spends ~30% of it's time calculating
determinants.
Cheers,
Dan.
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