mp_units::codata::codata2018::proton_relative_atomic_mass¶
Synopsis¶
Declared in <mp-units/systems/codata/codata2018.h>
struct proton_relative_atomic_mass final :
named_constant<
"proton_relative_atomic_mass", mag_ratio<1007276466621L, 1000000000000L> * one,
(standard_uncertainty<mp_units::scaled_unit<
mp_units::detail::unit_magnitude<power_v<2L, ratio{-12, 1}.num>{}, power_v<5L, ratio{-12, 1}.num>{}, 53L>{{}},
mp_units::one>>){mag_ratio<53, 10> * mag_power<10, -11> * one}>