trig functions
sin(x), cos(x), tan(x)
inverse trig functions
asin(x), acos(x), atan(x)
arctan(y/x)
atan2(y,x)
hyperbolic trig functions
sinh(x), cosh(x), tanh(x)
sinh(x), cosh(x), tanh(x)
exp(x), log(x), log10(x)
exponentials & logs (2 power)
ldexp(x,n), frexp(x,&e)
division & remainder
modf(x,ip), fmod(x,y)
powers
pow(x,y), sqrt(x)
rounding
ceil(x), floor(x), fabs(x)