Some common mathematical functions

13 Corner function
Double sin (double);
Double cos (double);
Double tan (double);
2 Inverse trigonometric function
Double asin (double); Results between [-PI/2, PI/2]
Double ACOs (double); Results between [0, PI]
Double Atan (double); Inverse tangent (main value), result between [-PI/2, PI/2]
Double atan2 (double, double); Arc Tangent (integer value), resulting in [-PI/2, PI/2]
3 Hyperbolic trigonometric Functions
Double Sinh (double);
Double cosh (double);
Double Tanh (double);
4 Index and logarithm
Double exp (double);
Double pow (double, double);
Double sqrt (double);
Double log (double); Logarithm with e as the base
Double log10 (double); natural logarithm function in C + +: Log (n) base 10: log10 (N) but no base 2 function but can be resolved with a bottom-changer formula: log2 (n) =log10 (n)/log10 (2)
5 rounding
Double ceil (double); Take the whole
Double floor (double); Remove the entire
6 absolute Value
Double fabs (double);
7 standardized floating-point numbers
Double Frexp (double f, int *p); Normalized floating-point numbers, f = x * 2^p, known F for X, p (x between [0.5, 1])
Double Ldexp (double x, int p); In contrast to Frexp, X, p is known to ask F
8 rounding and taking out the remainder
Double Modf (double, double*); Returns the integer part of the argument through the pointer, returning the fractional part
Double Fmod (double, double); Returns the remainder of dividing two arguments

Some common math functions