| // (C) Copyright John Maddock 2005. |
| // Use, modification and distribution are subject to the |
| // Boost Software License, Version 1.0. (See accompanying file |
| // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
| |
| #ifndef BOOST_MATH_COMPLEX_ASINH_INCLUDED |
| #define BOOST_MATH_COMPLEX_ASINH_INCLUDED |
| |
| #ifndef BOOST_MATH_COMPLEX_DETAILS_INCLUDED |
| # include <boost/math/complex/details.hpp> |
| #endif |
| #ifndef BOOST_MATH_COMPLEX_ASIN_INCLUDED |
| # include <boost/math/complex/asin.hpp> |
| #endif |
| |
| namespace boost{ namespace math{ |
| |
| template<class T> |
| inline std::complex<T> asinh(const std::complex<T>& x) |
| { |
| // |
| // We use asinh(z) = i asin(-i z); |
| // Note that C99 defines this the other way around (which is |
| // to say asin is specified in terms of asinh), this is consistent |
| // with C99 though: |
| // |
| return ::boost::math::detail::mult_i(::boost::math::asin(::boost::math::detail::mult_minus_i(x))); |
| } |
| |
| } } // namespaces |
| |
| #endif // BOOST_MATH_COMPLEX_ASINH_INCLUDED |