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mp_units::codata::codata2018::electron_helion_mass_ratio

Synopsis

Declared in <mp-units/systems/codata/codata2018.h>

struct electron_helion_mass_ratio final :
    named_constant<
      "electron_helion_mass_ratio", mag_ratio<1819543074573L, 1000000000000L> * mag_power<10, -4> * one,
      (standard_uncertainty<mp_units::scaled_unit<
         mp_units::detail::unit_magnitude<power_v<2L, ratio{-16, 1}.num>{}, power_v<5L, ratio{-16, 1}.num>{}, 79L>{{}},
         mp_units::one>>){mag_ratio<79, 10> * mag_power<10, -15> * one}>

Base Classes

NameDescription
named_constant<"electron_helion_mass_ratio", mag_ratio<1819543074573L, 1000000000000L> * mag_power<10, -4> * one, (standard_uncertainty<mp_units::scaled_unit<mp_units::detail::unit_magnitude<power_v<2L, ratio{-16, 1}.num>{}, power_v<5L, ratio{-16, 1}.num>{}, 79L>{{}}, mp_units::one>>){mag_ratio<79, 10> * mag_power<10, -15> * one}>