친절한 매뉴얼

☞ sin, cos, tan, asin, acos, atan, atan2 double sin(double x); float sinf(float x); long double sinl(long double x); double cos(double x); float cosf(float x); long double cosl(long double x); double tan(double x); float tanf(float x); long double tanl(long double x); double asin(double x); float asinf(float x); long double asinl(long double x); double acos(double x); float acosf(float x); long doubl..