multiplying matrices

                                                        1) Write a dimension Statement

2) Row x column and Sum x products

3) Repeat until complete

For this picture, you would have to repeat this process for the 2nd row x 4th column 

Matrices

 

This is a 2x2 matrix. It has 2 rows that go side to side. 2 columns that go side to side.

 

This is a 3x2 Matrix. It has 3 rows and 2 columns

  

This is a 3x3 matrix. 3 rows by 2 columns 

This is a special kind of matrix. It is called an Identity Matrix. It is where the other matices originate from.