INV_SQRT_TWO_PI

constexpr double stan::math::INV_SQRT_TWO_PI = boost::math::constants::one_div_root_two_pi<double>()

staticconstexpr

The value of 1 over the square root of \( 2\pi \), \( 1 / \sqrt{2\pi} \).

Definition at line 161 of file constants.hpp.