How can I quickly obtain the inverse of a square sparse matrix?

Dear All,

I have a square sparse matrix A. I use the following way to obtain its inverse:

invA = A \ eye(size(A));

I am wondering if there is a faster way to obtain invA.

Thanks a lot.

Benson

Answer 1

[J. Alex Lee]

potentially, if you have more information about the properties of A, you can specify them in a call to linsolve

https://www.mathworks.com/help/matlab/ref/linsolve.html#mw_f23b9376-00ee-4eba-8af3-48ee240f0b77