minor(a, i, j)
Returns the minor of matrix a corresponding to row i and column j.
See also minormatrix cofactor
Example
a = ( 1, 2, 3 ; 4, 5, 6 ; 7, 8, 9 )
1 2 3
4 5 6
7 8 9
minor( a, 2, 1 )
-6