grss.libgrss.matrix_inverse

grss.libgrss.matrix_inverse(mat: list[list[float]], tol: float = 1e-16) → list[list[float]]

Calculate the inverse of a matrix using LU decomposition.

Parameters:

• mat (list of list of real) – Matrix to invert.

• tol (real, optional) – Tolerance for the matrix inversion, by default 1.0e-16L.

Returns:

invMat – Inverse of the matrix.

Return type:

list of list of real