Adding Matrices :
Here you will learn to add two square matrix (2x2 or 3x3).It is very simple to add two matrices. For an example we will consider two matrices A & B, each with three rows and three columns.
Matrix A | | Matrix B |
a11 | a12 | a13 |
a21 | a22 | a23 |
a31 | a32 | a33 |
| + |
b11 | b12 | b13 |
b21 | b22 | b23 |
b31 | b32 | b33 |
|
The matrix are named A and B. Each cell has been given a number to easily identify the cell.
Say a11 means cell belonging to first row, first column. a21 means cell belonging to second row, first column.
To add the matrix just add the numbers in the similar cells of the two matrices.
Add first row, first column value of matrix A (a11) to the first row, first column value of matrix B (b11) to get the first row, first column value of the result matrix.
Result Matrix |
a11+b11 | a12+b12 | a13+b13 |
a21+b21 | a22+b22 | a23+b23 |
a31+b31 | a32+b32 | a33+b33 |
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