33 lines
1016 B
Plaintext
33 lines
1016 B
Plaintext
// (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
|