A + B
A + B adds A and B. A and B must have the same size, unless one is a scalar. A scalar can be added to a matrix of any size.
A |
B |
A + B |
1 |
3 |
4 |
2.1 |
-3.2 |
-1.1 |
[1,2;3,4] |
[1,1;5,5] |
[2,3;8,9] |
2 |
[1,2;3,4] |
[3,4;5,6] |
[1,2;3,4] |
4 |
[5,6;7,8] |
[1,2;3,4] |
[5,6;7,8;9,10] |
not allowed! |
If A and B are matrices, they must have the same size.