mp_units::codata::codata2014::vacuum_electric_permittivity¶
Synopsis¶
Declared in <mp-units/systems/codata/codata2014_essential.h>
struct vacuum_electric_permittivity final :
named_constant<symbol_text<6UL - 1, 6UL - 1>{u8"\316\265\342\202\200", "eps_0"},
one / magnetic_constant / square(speed_of_light_in_vacuum)>