# floor()

Returns the largest (closest to positive infinity) double value that is less than or equal to the value and is equal to a mathematical integer.

## Syntax

`Numeric floor()`

## Usage

Special cases:

- If the value is already equal to a mathematical integer, then the result is the same as the value.
- If the value is NaN or an infinity or positive zero or negative zero, then the result is the same as the value.