# SQRT

Computes the square root of the given input.

## Syntax

```
SQRT(X) 
```

## Arguments

#### X

Type: `numeric`

A numeric value.

## Returns

Type: `double`

The square root of `X` as a `double`.

Note that if $$x \leq 0$$, then the function returns a null value.

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## Examples

| X | Output |
| --- | --- |
| 1 | 1.0 |
| -1 | `null` |
| 0 | 0.0 |
| 10.5 | 3.24037034920393 |