codac2_math.h

Go to the documentation of this file.

 
#pragma once
 
#include <numbers>
#include <cmath>
 
namespace codac2
{
  constexpr double PI = std::numbers::pi; // Need C++20
 
  inline int sign(double x)
  {
    return (x > 0) ? 1 : ((x < 0) ? -1 : 0);
  }
 
  inline int integer(double x)
  {
    return (int)x;
  }
  
  inline double pow(double v, double p)
  {
    return v < 0 ? -std::pow(-v,p) : std::pow(v,p);
  }
  
  inline double root(double v, double p)
  {
    return pow(v, 1./p);
  }
}