Inversion of ill Contioned Matrices

In my code I have to take inversion of matrices at a certain point. When I am trying to take the inverse of ill conditioned matrices, I am getting a weird result.

Can anyone suggest me a method about how to take inversion of ill conditioned matrices. Thanks in advance.

Answer 1

[Matt Fig]

You could try scaling, or using PINV. However, I hope you are not taking the inverse of a matrix in order to solve a system of linear equations. If so, try backslash instead. It is much faster.

Ax = b % If this is the equation, the following are ways of solving it.

x = A\b = inv(A)*b % The \ operation is much preferred.