Diagonal, Scalar & Identity Matrices Explained

In this video we are discussing about the difference between #Scalar, #Diagonal and #Identity matrix. This short video will help you for better understanding.
You will find the answer of most asked questions;
is identity matrix a scalar matrix?
what is a scalar matrix?
diagonal matrix example?
is zero matrix a diagonal matrix?
scalar matrix is also known as?
Are all scalar matrices diagonal matrices?
What is the difference between unit matrix and scalar matrix?
difference between diagonal matrix and unit matrix?
what is identity matrix?
diagonal matrix vs scalar matrix vs identity matrix example