Fande Kong <[email protected]> writes: > Hi all, > > I want to get the inverse of 4X4 matrix, and I found a function > PetscKernel_A_gets_inverse_A_4 which possibly reaches my purpose. But there > is a extra parameter 'shift'. What value should I use for the parameter > 'shift'?
0 if your matrix is nonsingular.
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