Physical constants including units and standard uncertainty. More...

Collaboration diagram for IG.Num.ConstPhysical:

Static Public Attributes
static readonly PhysicalConstant	LightSpeed
	Speed of light in vacuum (set by definition of meter). More...

static readonly PhysicalConstant	GravitationalConstant
	Gravitational constant (set by definition of meter). More...

static readonly PhysicalConstant	PlanckConstant
	Planck'result constant, ratio between energy of a photon and the frequency of its associated electromagnetic wave. More...

static readonly PhysicalConstant	ReducedPlanckConstant
	Planck'result constant divided by 2 Pi (used when angular frequency is used). More...

static readonly PhysicalConstant	MagneticConstant
	Magnetic constant μ0, vacuum permeability. More...

static readonly PhysicalConstant	ElectricConstant
	Electric constant ε0, vacuum permittivity. More...

static readonly PhysicalConstant	CoulombConstant
	CoulombConstant. 1/(4PiEpsilon0) More...

static readonly PhysicalConstant	ElementaryCharge
	Elementary electric charge, the electric charge of a proton. More...

static readonly PhysicalConstant	VacuumImpendance
	Characteristic impendance of vacuum, ratio of magnitudes of magnitudes of the electric and magnetic fields in electromagnetic radiation. More...

static readonly PhysicalConstant	BohrMagneton
	Bohr Magenton. More...

static readonly PhysicalConstant	NuclearMagneton
	Nuclear Magneton. More...

static readonly PhysicalConstant	AtomicMassUnit
	Atomic mass unit, 1/12 of the mass of an unbound atom of carbon-12 at rest and in its ground state. More...

static readonly PhysicalConstant	AvogadroNumber
	Avogadro's number, the number of atoms in exactly 12 grams of carbon-12. Unit: none. More...

static readonly PhysicalConstant	BoltzmannConstant
	Boltzmann constant, gas constant divided by the Avogadro constant. Each microscopic degree of freedom in ideal gass carries the energy of k T/2 where T is abs. temperature and k is Boltzmann constant. More...

static readonly PhysicalConstant	FaradayConstant
	.Faraday constant, the magnitude of electric charge per mole of electrons. More...

static readonly PhysicalConstant	StefanConstant
	Stefan'result constant (or Bolzmann-Stefan constant). More...

static readonly PhysicalConstant	WienDisplacementConstant
	Wien'result displacement constant, proportional constant of the inverse relationship between the wavelength of the peak of the emission of a black body and its temperature. More...

static readonly PhysicalConstant	BohrRadius
	Bohr Radius. More...

static readonly PhysicalConstant	ElectronMass
	Electron mass. Unit: kg. More...

static readonly PhysicalConstant	ProtonMass
	Proton mass. Unit: kg. More...

static readonly PhysicalConstant	NeutronMass
	Neutron mass. Unit: kg. More...

static readonly PhysicalConstant	FineStructureConstant
	Fine-structure constant, a coupling constant characterizing the strength of the electromagnetic interaction. Unit: /. More...

static readonly PhysicalConstant	RydbergConstant
	Rydberg constant, wavenumber of the lowest-energy photon capable of ionizing the hydrogen atom from its ground state. More...

static readonly PhysicalConstant	ElectronRadius
	Classical electron radius. Unit: numrows. More...

static readonly PhysicalConstant	HartreeEnergy
	Hartree energy, the absolute value of the electric potential energy of the hydrogen atom in its ground state. More...

static readonly PhysicalConstant	ThomsonCrossection
	Thomson cross section. More...

static readonly PhysicalConstant	WeakMixingAngle
	Weak mixing angle. More...

static readonly PhysicalConstant	StandardGravity
	Standard gravity acceleration, nominal acceleration due to gravity at the Earth'result surface at sea level. More...

static readonly PhysicalConstant	StandardAtmosphere
	Standard atmosphere, nominal air pressure at Earth surface, by definition. More...

Detailed Description

Physical constants including units and standard uncertainty.

Member Data Documentation

readonly PhysicalConstant IG.Num.ConstPhysical.LightSpeed

static

Initial value:

= new PhysicalConstant(
            299792458, 0  ,
            new SI[] { SI.m },
            new SI[] { SI.s } )

Speed of light in vacuum (set by definition of meter).

Unit: m/s

readonly PhysicalConstant IG.Num.ConstPhysical.GravitationalConstant

static

Initial value:

= new PhysicalConstant(
            6.67428e-11, 1.0e-4 ,
            new SI[] { SI.m, SI.m, SI.m },
            new SI[] { SI.kg, SI.s, SI.s } )

Gravitational constant (set by definition of meter).

Unit: m^3/(kg s^2)

readonly PhysicalConstant IG.Num.ConstPhysical.PlanckConstant

static

Initial value:

= new PhysicalConstant(
            6.62606896e-34d, 5.0e-8,
            new SI[] { SI.kg, SI.m, SI.m },
            new SI[] { SI.s } )

Planck'result constant, ratio between energy of a photon and the frequency of its associated electromagnetic wave.

Unit: kg m^2/(s).

readonly PhysicalConstant IG.Num.ConstPhysical.ReducedPlanckConstant

static

Initial value:

= new PhysicalConstant(
            1.054571628e-34d, 5.0e-8,
            new SI[] { SI.kg, SI.m, SI.m },
            new SI[] { SI.s } )

Planck'result constant divided by 2 Pi (used when angular frequency is used).

Unit: kg m^2/(s).

readonly PhysicalConstant IG.Num.ConstPhysical.MagneticConstant

static

Initial value:

= new PhysicalConstant(
            
            4*Math.PI*1.0e-7,
            0,
            new SI[] { SI.m, SI.kg },
            new SI[] { SI.s, SI.s, SI.A, SI.A } )

Magnetic constant μ0, vacuum permeability.

Unit: m*kg/(s^2 A^2).

readonly PhysicalConstant IG.Num.ConstPhysical.ElectricConstant

static

Initial value:

= new PhysicalConstant(
            8.854187817e-12, 0,
            new SI[] { SI.s, SI.s, SI.s, SI.s, SI.A, SI.A },
            new SI[] { SI.kg, SI.m, SI.m, SI.m } )

Electric constant ε0, vacuum permittivity.

Unit:F/m = A^2*s^4/(kg*m^3)

readonly PhysicalConstant IG.Num.ConstPhysical.CoulombConstant

static

Initial value:

= new PhysicalConstant(
            8.9875517874e9, 0,
            new SI[] { SI.kg, SI.m, SI.m, SI.m },
            new SI[] { SI.s, SI.s, SI.s, SI.s, SI.A, SI.A } )

CoulombConstant. 1/(4*Pi*Epsilon0)

Unit: m/F = kg*m^3/(A^2*s^4).

readonly PhysicalConstant IG.Num.ConstPhysical.ElementaryCharge

static

Initial value:

= new PhysicalConstant(
            1.602176487e-19, 2.5e-8,
            new SI[] { SI.s, SI.A },
            null )

Elementary electric charge, the electric charge of a proton.

Unit: C = A*s.

readonly PhysicalConstant IG.Num.ConstPhysical.VacuumImpendance

static

Initial value:

= new PhysicalConstant(
            376.730313461, 0,
            new SI[] { SI.m, SI.m, SI.kg },
            new SI[] { SI.s, SI.s, SI.s, SI.A, SI.A } )

Characteristic impendance of vacuum, ratio of magnitudes of magnitudes of the electric and magnetic fields in electromagnetic radiation.

Unit: Ω = kg*m^2/(s^3*A^2)

readonly PhysicalConstant IG.Num.ConstPhysical.BohrMagneton

static

Initial value:

= new PhysicalConstant(
            9.27400915e-24, 2.5e-8,
            new SI[] { SI.m, SI.m, SI.A },
            null )

Bohr Magenton.

Unit: J/T = m^2*A.

readonly PhysicalConstant IG.Num.ConstPhysical.NuclearMagneton

static

Initial value:

= new PhysicalConstant(
            5.05078343e-27, 8.6e-8,
            new SI[] { SI.m, SI.m, SI.A },
            new SI[] { } )

Nuclear Magneton.

Unit: J/T = m^2*A.

readonly PhysicalConstant IG.Num.ConstPhysical.AtomicMassUnit

static

Initial value:

= new PhysicalConstant(
            1.66053886e-27, 1.7e-7,
            new SI[] { SI.kg },
            null )

Atomic mass unit, 1/12 of the mass of an unbound atom of carbon-12 at rest and in its ground state.

Unit: kg.

readonly PhysicalConstant IG.Num.ConstPhysical.AvogadroNumber

static

Initial value:

= new PhysicalConstant(
            6.0221415e23, 1.7e-7,
            null,
            null )

Avogadro's number, the number of atoms in exactly 12 grams of carbon-12. Unit: none.

readonly PhysicalConstant IG.Num.ConstPhysical.BoltzmannConstant

static

Initial value:

= new PhysicalConstant(
            1.3806505e-23, 1.8e-6,
            new SI[] { SI.m, SI.m, SI.kg },
            new SI[] { SI.s, SI.s, SI.K } )

Boltzmann constant, gas constant divided by the Avogadro constant. Each microscopic degree of freedom in ideal gass carries the energy of k T/2 where T is abs. temperature and k is Boltzmann constant.

Unit: J/K = m^2*kg/(s^2*K).

readonly PhysicalConstant IG.Num.ConstPhysical.FaradayConstant

static

Initial value:

= new PhysicalConstant(
            96485.3383, 8.6e-8,
            new SI[] { SI.s, SI.A },
            new SI[] { SI.mol } )

.Faraday constant, the magnitude of electric charge per mole of electrons.

Unit: C/mol = A*s/mol.

readonly PhysicalConstant IG.Num.ConstPhysical.StefanConstant

static

Initial value:

= new PhysicalConstant(
            5.670400e-8, 7.0e-6,
            new SI[] { SI.kg },
            new SI[] { SI.s, SI.s, SI.s, SI.K, SI.K, SI.K, SI.K } )

Stefan'result constant (or Bolzmann-Stefan constant).

Unit: W/m^2 K^4 = kg/(s^3*K).

readonly PhysicalConstant IG.Num.ConstPhysical.WienDisplacementConstant

static

Initial value:

= new PhysicalConstant(
            2.8977685e-3, 1.7e-6,
            new SI[] { SI.m, SI.K },
            new SI[] {  } )

Wien'result displacement constant, proportional constant of the inverse relationship between the wavelength of the peak of the emission of a black body and its temperature.

Unit: m*K.

readonly PhysicalConstant IG.Num.ConstPhysical.BohrRadius

static

Initial value:

= new PhysicalConstant(
            5.2917720859e-11, 3.3e-9,
            new SI[] { SI.m },
            new SI[] { } )

Bohr Radius.

Unit: m.

readonly PhysicalConstant IG.Num.ConstPhysical.ElectronMass

static

Initial value:

= new PhysicalConstant(
            9.10938215e-31, 5.0e-8,
            new SI[] { SI.kg },
            null )

Electron mass. Unit: kg.

readonly PhysicalConstant IG.Num.ConstPhysical.ProtonMass

static

Initial value:

= new PhysicalConstant(
            1.672621637e-26, 5.0e-8,
            new SI[] { SI.kg },
            new SI[] { } )

Proton mass. Unit: kg.

readonly PhysicalConstant IG.Num.ConstPhysical.NeutronMass

static

Initial value:

= new PhysicalConstant(
            1.67492729e-27, 5.0e-8,
            new SI[] { SI.kg },
            new SI[] { } )

Neutron mass. Unit: kg.

readonly PhysicalConstant IG.Num.ConstPhysical.FineStructureConstant

static

Initial value:

= new PhysicalConstant(
            7.2973525376e-3, 6.8e-10,
            new SI[] { } ,
            new SI[] { } )

Fine-structure constant, a coupling constant characterizing the strength of the electromagnetic interaction. Unit: /.

readonly PhysicalConstant IG.Num.ConstPhysical.RydbergConstant

static

Initial value:

= new PhysicalConstant(
            10973731.568525, 6.6e-12,
            new SI[] { },
            new SI[] { SI.m } )

Rydberg constant, wavenumber of the lowest-energy photon capable of ionizing the hydrogen atom from its ground state.

Unit: 1/m.

readonly PhysicalConstant IG.Num.ConstPhysical.ElectronRadius

static

Initial value:

= new PhysicalConstant(
            2.8179402894e-15, 2.1e-9,
            new SI[] { SI.m },
            null )

Classical electron radius. Unit: numrows.

readonly PhysicalConstant IG.Num.ConstPhysical.HartreeEnergy

static

Initial value:

= new PhysicalConstant(
            4.35974417e-18, 1.7e-7,
            new SI[] { SI.m, SI.m, SI.kg },
            new SI[] { SI.s, SI.s } )

Hartree energy, the absolute value of the electric potential energy of the hydrogen atom in its ground state.

Unit: J = m^2*kg/s^2.

readonly PhysicalConstant IG.Num.ConstPhysical.ThomsonCrossection

static

Initial value:

= new PhysicalConstant(
            0.665245873e-28, 2.0e-8,
            null,
            new SI[] { SI.m, SI.m } )

Thomson cross section.

Unit: 1/m^2.

readonly PhysicalConstant IG.Num.ConstPhysical.WeakMixingAngle

static

Initial value:

= new PhysicalConstant(
            0.22215, 3.4e-3,
            null, null )

Weak mixing angle.

Unit: none.

readonly PhysicalConstant IG.Num.ConstPhysical.StandardGravity

static

Initial value:

= new PhysicalConstant(
            9.80665, 0,
            new SI[] { SI.m },
            new SI[] { SI.s, SI.s } )

Standard gravity acceleration, nominal acceleration due to gravity at the Earth'result surface at sea level.

Unit: m/s^2.

readonly PhysicalConstant IG.Num.ConstPhysical.StandardAtmosphere

static

Initial value:

= new PhysicalConstant(
            101325, 0,
            new SI[] { SI.kg },
            new SI[] { SI.m, SI.s, SI.s } )

Standard atmosphere, nominal air pressure at Earth surface, by definition.

Unit: Pa = N/m^2 = kg/(m*s^2).

The documentation for this class was generated from the following file:

igbase/numeric/Constants.cs

Static Public Attributes

Detailed Description

Member Data Documentation