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Matrix determinant

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Hello, I am playing around with some matrix math for my own learning and I came across a the "cofactor expansion" method for finding the determinant. http://comp.uark.edu/~jjrencis/femur/Learning-Modules/Linear-Algebra/solving/determinant/cofactor_expansion.html I implemented the recursive method and I decided to test it out for a 10x10 float matrix only to find out that it is terribly slow (~10 seconds!). I tried the same matrix in matlab and it seems almost instant :( Is there a faster way to get the determinant?

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