const.h

#pragma once
#include "ff/precision.h"
#include <cmath>
 
namespace tinker {
constexpr real pi = M_PI;
constexpr real sqrtpi = 1.77245385090551602730;
constexpr real radian = 57.2957795130823208768;
constexpr real _1radian = 0.01745329251994329576924;
}