V9/include/CC/math.h

extern double fabs(double),
	floor(double),
	ceil(double),
	modf(double, double*),
	frexp(double, int*),
	ldexp(double, int),
	sqrt(double),
	hypot(double, double),
	atof(const char*),
	sin(double),
	cos(double),
	tan(double),
	asin(double),
	acos(double),
	atan(double),
	atan2(double, double),
	exp(double),
	log(double),
	log10(double),
	pow(double, double),
	sinh(double),
	cosh(double),
	tanh(double),
	gamma(double),
	j0(double),
	j1(double), jn(int, double), y0(double),
	y1(double), yn(int, double);

#define HUGE	1.701411733192644270e38
#define PI	3.1415926535897932384
#define	PI2	6.2831853071795864769