diff options
Diffstat (limited to 'boost/math/special_functions/ellint_3.hpp')
| -rw-r--r-- | boost/math/special_functions/ellint_3.hpp | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/boost/math/special_functions/ellint_3.hpp b/boost/math/special_functions/ellint_3.hpp index f63bb2d4b0..ac7e68c17f 100644 --- a/boost/math/special_functions/ellint_3.hpp +++ b/boost/math/special_functions/ellint_3.hpp @@ -18,6 +18,7 @@ #pragma once #endif +#include <boost/math/special_functions/math_fwd.hpp> #include <boost/math/special_functions/ellint_rf.hpp> #include <boost/math/special_functions/ellint_rj.hpp> #include <boost/math/special_functions/ellint_1.hpp> @@ -26,6 +27,7 @@ #include <boost/math/constants/constants.hpp> #include <boost/math/policies/error_handling.hpp> #include <boost/math/tools/workaround.hpp> +#include <boost/math/special_functions/round.hpp> // Elliptic integrals (complete and incomplete) of the third kind // Carlson, Numerische Mathematik, vol 33, 1 (1979) @@ -182,14 +184,14 @@ T ellint_pi_imp(T v, T phi, T k, T vc, const Policy& pol) } else { - T rphi = boost::math::tools::fmod_workaround(T(fabs(phi)), T(constants::pi<T>() / 2)); - T m = floor((2 * fabs(phi)) / constants::pi<T>()); + T rphi = boost::math::tools::fmod_workaround(T(fabs(phi)), T(constants::half_pi<T>())); + T m = boost::math::round((fabs(phi) - rphi) / constants::half_pi<T>()); int sign = 1; if(boost::math::tools::fmod_workaround(m, T(2)) > 0.5) { m += 1; sign = -1; - rphi = constants::pi<T>() / 2 - rphi; + rphi = constants::half_pi<T>() - rphi; } T sinp = sin(rphi); T cosp = cos(rphi); |