# eq\(==\) {#eq}

**Parent topic:**[Operators](../../../Programming/Operators/Operators.md)

## Syntax {#syntax}

X==Y

## Arguments {#arguments}

**X** and **Y** is a scalar/pair/vector/matrix/set. If *X* or *Y* is a pair/vector/matrix, the other is a scalar or a pair/vector/matrix of the same size.

## Details {#details}

If neither *X* nor *Y* is a set, return the element-by-element comparison of *X*==*Y*.

If *X* and *Y* are sets, check if *X* and *Y* are identical.

## Examples {#examples}

```
1 2 3 == 2;
// output: [0,1,0]

1 2 3==0 2 4;
// output: [0,1,0]

1:2==1:6;
// output: 1 : 0

m1=1..6$2:3;
m1;
```

|\#0|\#1|\#2|
|---|---|---|
|1|3|5|
|2|4|6|

```
m1 == 4;
```

|\#0|\#1|\#2|
|---|---|---|
|0|0|0|
|0|1|0|

```
m2=6..1$2:3;
m2;
```

|\#0|\#1|\#2|
|---|---|---|
|6|4|2|
|5|3|1|

```
m1==m2;
```

|\#0|\#1|\#2|
|---|---|---|
|0|0|0|
|0|0|0|

Set operation: If X==Y then X and Y are identical

```
x=set(4 6);
y=set(4 6 8);

x==y;
// output: 0
x==x;
// output: 1
```

