# Math.ceil()

#### Availability

Flash Player 5. In Flash Player 4, the methods and properties of the Math object are emulated using approximations and may not be as accurate as the non-emulated math functions supported by Flash Player 5.

#### Usage

    Math.ceil(x)

#### Parameters

`x` A number or expression.

#### Returns

A number.

#### Description

Method; returns the ceiling of the specified number or expression. The ceiling of a number is the closest integer that is greater than or equal to the number.