16.4.1.7 Matrix Exponentiation Operator **

The result of A**B is defined as follows when A is a square matrix and B is an integer scalar:

PSPP reports an error if A is not square or B is not an integer.

Examples:

{2, 5; 1, 4}**3{48, 165; 33, 114}
{2, 5; 1, 4}**0{1, 0; 0, 1}
10*{4, 7; 2, 6}**-1{6, -7; -2, 4}