stan/html/prob_2constants_8hpp_source.html

 #ifndef __STAN__PROB__DISTRIBUTIONS_CONSTANTS_HPP__

 #define __STAN__PROB__DISTRIBUTIONS_CONSTANTS_HPP__


 #include <boost/math/constants/constants.hpp>


 namespace stan {


   namespace prob {


     namespace {


       const double LOG_PI = std::log(boost::math::constants::pi<double>());


       const double LOG_ZERO = std::log(0.0);


       const double LOG_TWO = std::log(2.0);


       const double NEG_LOG_TWO = - LOG_TWO;


       const double NEG_LOG_SQRT_TWO_PI

       = - std::log(std::sqrt(2.0 * boost::math::constants::pi<double>()));


       const double NEG_LOG_PI = - LOG_PI;


       const double NEG_LOG_SQRT_PI

       = -std::log(std::sqrt(boost::math::constants::pi<double>()));


       const double NEG_LOG_TWO_OVER_TWO = - LOG_TWO / 2.0;


       const double SQRT_2 = std::sqrt(2.0);


     }


  }


 }


 #endif

stan::agrad::sqrt
var sqrt(const var &a)
Return the square root of the specified variable (cmath).
Definition: agrad.hpp:1761

stan::agrad::log
var log(const var &a)
Return the natural log of the specified variable (cmath).
Definition: agrad.hpp:1730

stan::math::SQRT_2
const double SQRT_2
The value of the square root of 2, .
Definition: constants.hpp:20

stan
Probability, optimization and sampling library.
Definition: agrad.cpp:6