Question

What is a scalar matrix with example??

Answer 1

A matrix is called the scalar matrix if it's principal diagonal elements are equal and scalar..
for example....if a 3×3 matrix have diagonal elements 2,2,2 then the matrix is scalar matrix..

I hope it will help you ☺

Answer 2

A scalar matrix is a special kind of diagonal matrix. It is a diagonal matrix with equal-valued elements along the diagonal. Two examples of a scalar matrix appear below. The identity matrix is also an example of a scalar matrix.