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# Function exp

Calculate the exponent of a value.
For matrices, the function is evaluated element wise.


## Syntax

```js
math.exp(x)
```

### Parameters

Parameter | Type | Description
--------- | ---- | -----------
`x` | number &#124; BigNumber &#124; Complex &#124; Array &#124; Matrix | A number or matrix to exponentiate

### Returns

Type | Description
---- | -----------
number &#124; BigNumber &#124; Complex &#124; Array &#124; Matrix | Exponent of `x`


### Throws

Type | Description
---- | -----------


## Examples

```js
math.exp(2)                  // returns number 7.3890560989306495
math.pow(math.e, 2)          // returns number 7.3890560989306495
math.log(math.exp(2))        // returns number 2

math.exp([1, 2, 3])
// returns Array [
//   2.718281828459045,
//   7.3890560989306495,
//   20.085536923187668
// ]
```


## See also

[expm1](expm1.md),
[log](log.md),
[pow](pow.md)