###
Example

Define an array, A.

A = [[ 2.0, 1.0, 1.0, 1.5], $

[ 4.0, -6.0, 0.0, 0.0], $

[-2.0, 7.0, 2.0, 2.5], $

[ 1.0, 0.5, 0.0, 5.0]]

inverse = INVERT(A)

Verify the accuracy of the computed inverse using the mathematical identity, A x A^{
-1}
- I(4) = 0; where A^{
-1}
is the inverse of A, I(4) is the 4 by 4 identity array and 0 is a 4 by 4 array of zeros.

PRINT, A ## inverse - IDENTITY(4)