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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>

The following example takes a suprisingly long time with 1.6.1 from sympy import symbols, Matrix a, b, c, d = symbols('a b c d') Z ... ... <看更多>

Jan 22, 2019 - This precalculus video tutorial explains how to find the inverse of a 3x3 matrix. You need to write an augmented matrix containing the ... ... <看更多>

Jan 22, 2019 - This precalculus video tutorial explains how to find the inverse of a 3x3 matrix. You need to write an augmented matrix containing the ... ... <看更多>