Question

Identify the matrix given below:
$\left[\begin{array}{ccc}1& 0& 0\\ 0& 3& 0\\ 0& 0& 2\end{array}\right]$

Answer 1

Since this matrix has all its elements zero except for those in the diagonal from top left to bottom right, this type of matrix is called Diagonal matrix.

The diagonal containing the non zero elements is called the Leading diagonal of the matrix.