mp_units::codata::codata2014::atomic_unit_of_permittivity¶
Synopsis¶
Declared in <mp-units/systems/codata/codata2014.h>
struct atomic_unit_of_permittivity final :
named_constant<"atomic_unit_of_permittivity", mag<4> * π / magnetic_constant / square(speed_of_light_in_vacuum)>