source: src/base/math.hpp@ 06e153

/**********************************************************************/
/**
 **  \file   math.hpp
 **
 **  \author Julian Iseringhausen
 **
 **  \brief Mathematical constants
 **
*************************************************************************/

#ifndef MATH_HPP_
#define MATH_HPP_

namespace VMG
{

namespace Math
{

  const double e              = 2.7182818284590452354;  /* e */
  const double log2e          = 1.4426950408889634074;  /* log_2 e */
  const double log10e         = 0.43429448190325182765; /* log_10 e */
  const double ln2            = 0.69314718055994530942; /* log_e 2 */
  const double ln10           = 2.30258509299404568402; /* log_e 10 */
  const double pi             = 3.14159265358979323846; /* pi */
  const double pi_2           = 1.57079632679489661923; /* pi/2 */
  const double pi_4           = 0.78539816339744830962; /* pi/4 */
  const double pi_inv         = 0.31830988618379067154; /* 1/pi */
  const double pi_2_inv       = 0.63661977236758134308; /* 2/pi */
  const double sqrtpi_2_inv   = 1.12837916709551257390; /* 2/sqrt(pi) */
  const double sqrt2          = 1.41421356237309504880; /* sqrt(2) */
  const double sqrt2_inv      = 0.70710678118654752440; /* 1/sqrt(2) */

}

}

#endif /* MATH_HPP_ */