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<h1 id="function-sqrt">Function sqrt <a href="#function-sqrt" title="Permalink">#</a></h1>

Calculate the square root of a value.

For matrices, if you want the matrix square root of a square matrix,
use the `sqrtm` function. If you wish to apply `sqrt` elementwise to
a matrix M, use `math.map(M, math.sqrt)`.


<h2 id="syntax">Syntax <a href="#syntax" title="Permalink">#</a></h2>

```js
math.sqrt(x)
```

<h3 id="parameters">Parameters <a href="#parameters" title="Permalink">#</a></h3>

Parameter | Type | Description
--------- | ---- | -----------
`x` | number &#124; BigNumber &#124; Complex &#124; Unit |  Value for which to calculate the square root.

<h3 id="returns">Returns <a href="#returns" title="Permalink">#</a></h3>

Type | Description
---- | -----------
number &#124; BigNumber &#124; Complex &#124; Unit |  Returns the square root of `x`


<h3 id="throws">Throws <a href="#throws" title="Permalink">#</a></h3>

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


<h2 id="examples">Examples <a href="#examples" title="Permalink">#</a></h2>

```js
math.sqrt(25)                // returns 5
math.square(5)               // returns 25
math.sqrt(-4)                // returns Complex 2i
```


<h2 id="see-also">See also <a href="#see-also" title="Permalink">#</a></h2>

[square](square.html),
[multiply](multiply.html),
[cube](cube.html),
[cbrt](cbrt.html),
[sqrtm](sqrtm.html)