stdlib_constants#
See also the specification page: stdlib_constants.
stdlib_constants (module)#
Constants (Specification: stdlib_constants)
Variables
- PI_spreal(kind=sp), parameter, Default = acos(-1.0_sp)
PI
- PI_dpreal(kind=dp), parameter, Default = acos(-1.0_dp)
PI
- creal(kind=dp), parameter, Default = SPEED_OF_LIGHT_IN_VACUUM%value
Speed of light in vacuum
- speed_of_lightreal(kind=dp), parameter, Default = SPEED_OF_LIGHT_IN_VACUUM%value
Speed of light in vacuum
- mu_0real(kind=dp), parameter, Default = VACUUM_MAG_PERMEABILITY%value
vacuum mag. permeability
- epsilon_0real(kind=dp), parameter, Default = VACUUM_ELECTRIC_PERMITTIVITY%value
vacuum mag. permeability
- hreal(kind=dp), parameter, Default = PLANCK_CONSTANT%value
Planck constant
- Planckreal(kind=dp), parameter, Default = PLANCK_CONSTANT%value
Planck constant
- hbarreal(kind=dp), parameter, Default = PLANCK_CONSTANT%value/(2.0_dp*PI_dp)
Reduced Planck constant
- Greal(kind=dp), parameter, Default = NEWTONIAN_CONSTANT_OF_GRAVITATION%value
Newtonian constant of gravitation
- gravitation_constantreal(kind=dp), parameter, Default = NEWTONIAN_CONSTANT_OF_GRAVITATION%value
Newtonian constant of gravitation
- g2real(kind=dp), parameter, Default = STANDARD_ACCELERATION_OF_GRAVITY%value
Standard acceleration of gravity
- ereal(kind=dp), parameter, Default = ELEMENTARY_CHARGE%value
Elementary charge
- Rreal(kind=dp), parameter, Default = MOLAR_GAS_CONSTANT%value
Molar gas constant
- gas_constantreal(kind=dp), parameter, Default = MOLAR_GAS_CONSTANT%value
Molar gas constant
- alphareal(kind=dp), parameter, Default = FINE_STRUCTURE_CONSTANT%value
Fine structure constant
- fine_structurereal(kind=dp), parameter, Default = FINE_STRUCTURE_CONSTANT%value
Fine structure constant
- N_Areal(kind=dp), parameter, Default = AVOGADRO_CONSTANT%value
Avogadro constant
- Avogadroreal(kind=dp), parameter, Default = AVOGADRO_CONSTANT%value
Avogadro constant
- kreal(kind=dp), parameter, Default = BOLTZMANN_CONSTANT%value
Boltzmann constant
- Boltzmannreal(kind=dp), parameter, Default = BOLTZMANN_CONSTANT%value
Boltzmann constant
- sigmareal(kind=dp), parameter, Default = STEFAN_BOLTZMANN_CONSTANT%value
Stefan-Boltzmann constant
- Stefan_Boltzmannreal(kind=dp), parameter, Default = STEFAN_BOLTZMANN_CONSTANT%value
Stefan-Boltzmann constant
- Wienreal(kind=dp), parameter, Default = WIEN_WAVELENGTH_DISPLACEMENT_LAW_CONSTANT%value
Wien wavelength displacement law constant
- Rydbergreal(kind=dp), parameter, Default = RYDBERG_CONSTANT%value
Rydberg constant
- m_ereal(kind=dp), parameter, Default = ELECTRON_MASS%value
Electron mass
- m_preal(kind=dp), parameter, Default = PROTON_MASS%value
Proton mass
- m_nreal(kind=dp), parameter, Default = NEUTRON_MASS%value
Neutron mass
- m_ureal(kind=dp), parameter, Default = ATOMIC_MASS_CONSTANT%value
Atomic mass constant
- ureal(kind=dp), parameter, Default = ATOMIC_MASS_CONSTANT%value
Atomic mass constant
- zero_int8integer(kind=int8), parameter, Default = 0_int8
- one_int8integer(kind=int8), parameter, Default = 1_int8
- zero_int16integer(kind=int16), parameter, Default = 0_int16
- one_int16integer(kind=int16), parameter, Default = 1_int16
- zero_int32integer(kind=int32), parameter, Default = 0_int32
- one_int32integer(kind=int32), parameter, Default = 1_int32
- zero_int64integer(kind=int64), parameter, Default = 0_int64
- one_int64integer(kind=int64), parameter, Default = 1_int64
- zero_spreal(kind=sp), parameter, Default = 0._sp
- one_spreal(kind=sp), parameter, Default = 1._sp
- log2_spreal(kind=sp), parameter, Default = log(2.0_sp)
- zero_dpreal(kind=dp), parameter, Default = 0._dp
- one_dpreal(kind=dp), parameter, Default = 1._dp
- log2_dpreal(kind=dp), parameter, Default = log(2.0_dp)
- zero_cspcomplex(kind=sp), parameter, Default = (0._sp, 0._sp)
- one_cspcomplex(kind=sp), parameter, Default = (1._sp, 0._sp)
- zero_cdpcomplex(kind=dp), parameter, Default = (0._dp, 0._dp)
- one_cdpcomplex(kind=dp), parameter, Default = (1._dp, 0._dp)