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// (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