On Friday, March 15, 2019 at 10:59:06 PM UTC+1, Kwankyu Lee wrote: > > Hi, > > If the determinant is obviously zero, then you don't need to run the > computation. If a preprocessing to check zero rows or columns is added, > then the determinant computation would become slower for usual nontrivial > cases. > > > Cheers. > > This is true if I, or the user, defined the matrix by hand. However, if the matrix appears as an intermediate result during a computation, a preprocessing step would help a lot.
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