INVERT(M)

Description
This function generates the inverse of the matrix M, which must be square. The result matrix is the same size as the argument matrix. Multiplying M times the result matrix produces an identity matrix (a matrix with 1's in the diagonal and 0's elsewhere). A singular matrix can not be inverted and therefore produces an error when passed to INVERT.

Parameters
M
A square matrix

Examples
Matrix B9..C10 =
     B   C
9   0   1
10  1   2
INVERT(B9..C10) =
-2  1
1  2

Matrix A1..B4 =
0   A     B
1  0.99  0
2  3     6.2
3  4.1  1.1
4  3.3  6.3
INVERT(A1..B4) = Error - INVERT, matrix must be square

Matrix H8..J10 =
     H   I   J
1   1   1   1
2   3   1   1
3   7   2   6
INVERT(H8..J10) =
-0.5      0.5       0
375      0.125   -0.25
0.125   -0.625   0.25