67 lines
2.2 KiB
C++
67 lines
2.2 KiB
C++
// Boost.Units - A C++ library for zero-overhead dimensional analysis and
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// unit/quantity manipulation and conversion
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//
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// Copyright (C) 2003-2008 Matthias Christian Schabel
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// Copyright (C) 2008 Steven Watanabe
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_UNITS_CODATA_ALPHA_CONSTANTS_HPP
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#define BOOST_UNITS_CODATA_ALPHA_CONSTANTS_HPP
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#include <boost/units/quantity.hpp>
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#include <boost/units/static_constant.hpp>
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#include <boost/units/systems/detail/constants.hpp>
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#include <boost/units/systems/si/amount.hpp>
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#include <boost/units/systems/si/area.hpp>
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#include <boost/units/systems/si/electric_charge.hpp>
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#include <boost/units/systems/si/energy.hpp>
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#include <boost/units/systems/si/frequency.hpp>
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#include <boost/units/systems/si/length.hpp>
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#include <boost/units/systems/si/mass.hpp>
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#include <boost/units/systems/si/magnetic_flux_density.hpp>
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#include <boost/units/systems/si/time.hpp>
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#include <boost/units/systems/si/wavenumber.hpp>
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#include <boost/units/systems/si/codata/typedefs.hpp>
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/// \file
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/// CODATA recommended values of fundamental atomic and nuclear constants
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/// CODATA 2006 values as of 2007/03/30
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namespace boost {
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namespace units {
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namespace si {
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namespace constants {
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namespace codata {
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/// CODATA recommended values of the fundamental physical constants: NIST SP 961
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/// alpha particle mass
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BOOST_UNITS_PHYSICAL_CONSTANT(m_alpha,quantity<mass>,6.64465620e-27*kilograms,3.3e-34*kilograms);
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/// alpha-electron mass ratio
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BOOST_UNITS_PHYSICAL_CONSTANT(m_alpha_over_m_e,quantity<dimensionless>,7294.2995365*dimensionless(),3.1e-6*dimensionless());
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/// alpha-proton mass ratio
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BOOST_UNITS_PHYSICAL_CONSTANT(m_alpha_over_m_p,quantity<dimensionless>,3.97259968951*dimensionless(),4.1e-10*dimensionless());
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/// alpha molar mass
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BOOST_UNITS_PHYSICAL_CONSTANT(M_alpha,quantity<mass_over_amount>,4.001506179127e-3*kilograms/mole,6.2e-14*kilograms/mole);
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} // namespace codata
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} // namespace constants
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} // namespace si
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} // namespace units
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} // namespace boost
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#endif // BOOST_UNITS_CODATA_ALPHA_CONSTANTS_HPP
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