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Inside Macintosh: Operating System Utilities /

Chapter 3 - Mathematical and Logical Utilities / Mathematical and Logical Utilities Reference

Performing Calculations on Fixed-Point Numbers
The Operating System provides four functions that you can use to perform a few common calculations on fixed-point numbers. The FracSqrt function allows you to obtain the square root of a number. The FracCos, FracSin, and FixATan2 functions allow you to obtain fast approximations of trigonometric functions on fixed-point numbers.

Subtopics

FracSqrt

FracCos

FracSin

FixATan2