# Sqr

Returns the square root of a number.

## Synopsis

```
Sqr(number)
```

### Arguments

The number argument can be any valid numeric expression greater than or equal to 0. You cannot return the square root of a negative number. Attempted to do so results in a runtime error.

## Examples

The following example uses the Sqr function to calculate the square roots of the integers 0 through 16:

```
For x = 0 To 16
Println "Square root of ",x," = ",Sqr(x)
Next
```

The following example uses the Sqr function to calculate the square root of pi:

```
pi = 4 * Atn(1)
Println "Square root of pi = ",Sqr(pi)
```