# intersect

Returns the elements in both `a` and `b`.

## Syntax

intersect(a,b)

intersect(a,b,'rows')

[x,y,z] = intersect(a,b)

## Inputs

`a,b`- The sets to search for common elements in.
`'rows'`- Specifies to search for common rows as opposed to common elements.

## Outputs

- R
- Common elements in ascending order.
- x,y,z
- x is the list of elements common to both sets (a and b).

## Examples

Simple intersect example:

`intersect([1,5,2;6,2,6],[9;0;1;2])`

`R = [ 1 ; 2 ]`

Simple intersect example with multiple returns:

`[a,b,c]=intersect([1,5,2;6,2,6],[9;0;1;2])`

```
a = [ 1 ; 2 ]
b = [ 1 ; 5 ]
c = [ 3 ; 4 ]
```

Simple intersect example with rows option:

`intersect([1,5,2;6,2,6],[9,0,1;6,2,6],'rows')`

```
ans = [Matrix] 1 x 3
6 2 6
```