# Matlab-Matrix - Addition

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To add two matrices, both the operand matrices must have the same number of rows and columns.

### Example

Here is an example

```a = [ 1 2 3 ; 4 5 6; 7 8 9];
b = [ 7 5 6 ; 2 0 8; 5 7 1];
c = a + b
```

### Output

On execution in MATLAB the result is as follows −

```>> a = [ 1 2 3 ; 4 5 6; 7 8 9];
b = [ 7 5 6 ; 2 0 8; 5 7 1];
c = a + b

c =

8  7   9
6  5  14
12 15  10

>>
```

## The plus() function

You can also make use of plus() built-in function to add two matrices as shown below −

### Example

Consider the following example for the use of plus() function to add the two matrices −

```a = [ 1 2 3 ; 4 5 6; 7 8 9];
b = [ 7 5 6 ; 2 0 8; 5 7 1];
c = plus(a,b)
```

### Output

The execution in MATLAB is as shown below −

```>> a = [ 1 2 3 ; 4 5 6; 7 8 9];
b = [ 7 5 6 ; 2 0 8; 5 7 1];
c = plus(a,b)

c =

8   7   9
6   5  14
12  15  10

>>
```