Matrix Addition

 

Adding Matrices

Rules for matrix addition:

1. Matrices that are to be added together must be the same size (same number of rows and same number of columns)
2. The corresponding cells of each matrix are added together. So cell a_1,1 is added to cell b_1,1, cell a_3,2 is added to b_3,2, and so on.

Note that matrix addition is commutative, so A + B = B + A

Example: