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**CoronaSDK 2015.2690**| Released: 28 Jul 2015, 2:49am | What's New | Download Now

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## math.sqrt()

##### Description:

Returns the square root of a value.

##### Syntax:

`math.sqrt (x)`

##### Example:

print (math.sqrt (100)) ---> 10 print (math.sqrt (-1)) ---> nan

##### Parameters:

`x`

A number.

##### Returns:

A number, *x ^{2}*.

`math.sqrt(x)`

is equivalent to using the exponentiation operator: `x^0.5`

##### Remarks:

##### Supported on operating systems and platforms for build numbers shown:

**Mac OS X:**Corona SDK 1.0**Windows:**Corona SDK 2.0**iOS:**Corona SDK 1.0**Android:**Corona SDK 2.0