mathjs/docs/reference/functions/bitNot.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 bitNot

Bitwise NOT value, `~x`.
For matrices, the function is evaluated element wise.
For units, the function is evaluated on the best prefix base.


## Syntax

```js
math.bitNot(x)
```

### Parameters

Parameter | Type | Description
--------- | ---- | -----------
`x` | Number | BigNumber | Boolean | Array | Matrix | null | Value to not

### Returns

Type | Description
---- | -----------
Number | BigNumber | Array | Matrix | NOT of `x`


## Examples

```js
math.bitNot(1);               // returns Number -2

math.bitNot([2, -3, 4]);      // returns Array [-3, 2, 5]
```


## See also

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


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