User Guide

Math.round() 441

Math.round()

Availability

Flash Player 5. In Flash Player 4, the methods and properties of the Math class are emulated using

approximations and might not be as accurate as the non-emulated math functions that Flash

Player 5 supports.

Usage

Math.round(x:Number) : Number

Parameters

A number.

Returns

A number; an integer.

Description

Method; rounds the value of the parameter x up or down to the nearest integer and returns

the value. If parameter

x is equidistant from its two nearest integers (that is, the number ends in

.5), the value is rounded up to the next higher integer.

Example

The following example returns a random number between two specified integers.

function randRange(min:Number, max:Number):Number {

var randomNum:Number = Math.round(Math.random()*(max-min))+min;

return randomNum;

}

for (var i = 0; i<25; i++) {

trace(randRange(4, 11));

}