cosf, coss
Computes the cosine of an angle in either floating point or fixed point
#include "gu.h" /* gu.h */ float cosf(float angle); float coss(unsigned short angle)
angle is the angle in radians. 0-0xffff(0-2 PI) for coss.
sinf uses polynomial approximation to compute the sine in radians. It computes the coss using a table lookup in DRAM, returning the result in s.15 fixed-point format.
In order to maintain the precision, do not specify a large value for the argument of cosf. When the argument is close to the maximum value of the type, 0 is returned.
1999/04/30 Changed Format
1999/06/01 Added Note