mathjs/docs/reference/functions/bitAnd.md

Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser and offers an integrated solution to work with numbers, big numbers, complex numbers, units, and matrices.

# Function bitAnd

Bitwise AND two values, `x & y`.
For matrices, the function is evaluated element wise.


## Syntax

```js
math.bitAnd(x, y)
```

### Parameters

Parameter | Type | Description
--------- | ---- | -----------
`x` | Number | BigNumber | Boolean | Array | Matrix | null | First value to and
`y` | Number | BigNumber | Boolean | Array | Matrix | null | Second value to and

### Returns

Type | Description
---- | -----------
Number | BigNumber | Array | Matrix | AND of `x` and `y`


## Examples

```js
math.bitAnd(53, 131);               // returns Number 1

math.bitAnd([1, 12, 31], 42);       // returns Array [0, 8, 10]
```


## See also

[bitNot](bitNot.md),
[bitOr](bitOr.md),
[bitXor](bitXor.md),
[leftShift](leftShift.md),
[rightArithShift](rightArithShift.md),
[rightLogShift](rightLogShift.md)


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