Common matrix operations implemented in prolog (tested with ECLiPSe 6.1)

Implemented

• Sum
• Difference, implemented also as a constraint
• Product
• Transpose
• Trace
• Diagonal
• Antidiagonal
• Determinant (only for a 2X2 and 3X3 matrix), implemented also as a constraint
• Size
• Identity
• Nth row
• Nth column
• Scalar multiplication, implemented also as a constraint
• Switch row
• Switch column
• Eigenvalues (only for a 2X2 and 3X3 matrix)
• Print matrix

Still a lot to do...