fixcos - Online Linux Manual Page

Section : 3
Updated : version 4.4.3
Source : Allegro
Note : Allegro manual
NAMEfixcos − Fixed point cosine of binary angles. Allegro game programming library.​
SYNOPSIS#include <allegro.h> fixed fixcos(fixed x);
DESCRIPTIONThis function finds the cosine of a value using a lookup table. The input value must be a fixed point binary angle. Example: fixed angle; float result; /* Set the binary angle to 45 degrees. */ angle = itofix(32); /* The cosine of 45 degrees is about 0.7071. */ result = fixtof(fixcos(angle)); ASSERT(result > 0.7 && result < 0.71);
RETURN VALUEReturns the cosine of a fixed point binary format angle. The return value will be in radians.
SEE ALSO, ex12bit(3), ex3buf(3), exblend(3), excustom(3), exspline(3), exupdate(3) 0
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