Section 4.0. Introduction


4.0. Introduction

Although numbers aren't always in the spotlight, don't overlook their power and importance in your code. Numbers come in all shapes and sizesfrom binary to decimal to hexadecimal. Each type of representation has its own particular niche in which it is most valuable. For example, hexadecimal numbers are often used to represent RGB color values because they make it easy to discern each of the three color components. (See Recipe 4.2 to learn how to convert between different number bases.)

Closely related to numbers is the subject of mathematics. Without mathematical operations, your Flash movies would be rather dull. Simple operations such as addition and subtraction are essential to even the most basic ActionScript applications, and more advanced math, such as random number generation and trigonometric calculations, is equally essential to advanced applications.

ActionScript 3.0 has three basic numeric types: number, int, and uint. number is for any floating-point numbers, whereas int and uint are for integers (whole numbers). The distinction between int and uint is that int is the set of negative and non-negative integers, while uint is the set of non-negative integers (unsigned integers).




ActionScript 3. 0 Cookbook
ActionScript 3.0 Cookbook: Solutions for Flash Platform and Flex Application Developers
ISBN: 0596526954
EAN: 2147483647
Year: 2007
Pages: 351

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