mp_units::codata::codata2018::magnetic_constant¶
Synopsis¶
Declared in <mp-units/systems/codata/codata2018_essential.h>
struct magnetic_constant final :
named_constant<symbol_text<6UL - 1, 4UL - 1>{u8"\316\274\342\202\200", "u_0"},
mag_ratio<125663706212L, 100000000000L> * mag_power<10, -6> * si::newton / square(si::ampere),
(standard_uncertainty<mp_units::derived_unit<
mp_units::scaled_unit<mp_units::detail::unit_magnitude<power_v<2L, ratio{-17, 1}.num>{},
power_v<5L, ratio{-17, 1}.num>{}, 19L>{{}},
mp_units::si::newton>,
mp_units::per<mp_units::power<mp_units::si::ampere, 2>>>>){
mag_ratio<19, 10> * mag_power<10, -16> * si::newton / square(si::ampere)}>