Code Analyzer: INV is slow and inaccurate

Question

When I try to calculate a matrix inverse using Matlab\'s inv() operation:

A = rand(10,10);
b = rand(10,1);

C = inv(A);
D = C*b;

I get the foll

Answer 1

If you absolutely need the inverse later on, then you have to compute it. If you can use the backslash operator (\) instead of an inverse again later on, I would stay away from the inverse and listen to MATLAB's suggestion. For numerical reasons, it is always better to use a slash operator when you can, so the second approach is better even though it is slower.