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What's the easiest way to compute a 3x3 matrix inverse? I'm just looking for a short code snippet that'll do the trick for non-singular matrices, possibly using ... ... <看更多>

As user3556214 points out, one can apply the formula for inverting a 2×2 block matrix repeatedly, but it does not lead to nice results. ... <看更多>

3x3 matrix inverse using GE takes an hour #19920 ... from sympy import symbols, Matrix a, b, c, d = symbols('a b c d') Z = Matrix([ [1/b + ... ... <看更多>