Properties of Matrices:
Basic properties of Matrices which are given as:
1. Zero matrix or Null matrix: A matrix whose all element equal to zero.
2. Upper traingular matrix: A square matrix whose element aij = 0 for all i > j.
3. Lower traingular matrix: A square matrix whose element aij = 0 for all i < j.
4. Diagonal matrix: A square matrix whose element aij = 0 for all i ≠ j. It is both upper and lower traingular matrix.
5. Scalar matrix: A diagonal matrix whose aij = λ for all i = j.
Example: