![]() |
FracSin |
||||
Header: | FixMath.h | Carbon status: | Supported | |
Obtains a fast approximation of the sine of a Fixed number.
Fract FracSin ( Fixed x );
The Fixed number expressed in radians, whose sine is to be calculated.
The sine, expressed in radians, of the Fixed number x.
The approximation of Pi/4 used to compute the sine is the hexadecimal value 0.C910, making the approximation of Pi equal to 3.1416015625, while Pi itself equals 3.14159265.... Despite the approximation of Pi, the sine value obtained is usually correct to several decimal places.
Supported in Carbon. Available in Carbon 1.0.2 and later when running Mac OS 8.1 or later.
© 2000 Apple Computer, Inc. (Last Updated 6/30/2000)