Function BOOST_UNITS_PHYSICAL_CONSTANT

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## Function BOOST_UNITS_PHYSICAL_CONSTANT

boost::units::si::constants::codata::BOOST_UNITS_PHYSICAL_CONSTANT — CODATA recommended values of the fundamental physical constants: NIST SP 961.

## Synopsis

     BOOST_UNITS_PHYSICAL_CONSTANT(m_alpha, quantity< mass >,
                                   6.64465620e-27 * kilograms,
                                   3.3e-34 * kilograms);

## Description

alpha particle mass