More determinant depth (K-A)

• (correction) scalar multiplication of row (K-A)
• Determinant when row is added (K-A)
• Duplicate row determinant (K-A)
• Determinant after row operations (K-A)
• Upper triangular determinant (K-A)
• Simpler 4x4 determinant (K-A)
• Determinant as scaling factor (K-A)