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Constants Class

A collection of frequently used mathematical constants.
Inheritance Hierarchy
SystemObject
  Altaxo.CalcConstants

Namespace: Altaxo.Calc
Assembly: AltaxoCore (in AltaxoCore.dll) Version: 4.8.3179.0 (4.8.3179.0)
Syntax
C#
public static class Constants

The Constants type exposes the following members.

Fields
 NameDescription
Public fieldStatic memberAttoThe SI prefix factor corresponding to 0.000 000 000 000 000 001
Public fieldStatic memberAvogadroAvogadro constant: [mol^-1] (2010 CODATA)
Public fieldStatic memberBohrMagnetonBohr Magneton: mu_B = e*h_bar/2*m_e [J T^-1] (2007 CODATA)
Public fieldStatic memberBohrRadiusBor Radius: a_0 = alpha/4*Pi*R_infty [m] (2007 CODATA)
Public fieldStatic memberCatalanThe Catalan constant
Public fieldStatic memberCentiThe SI prefix factor corresponding to 0.01
Public fieldStatic memberCharacteristicImpedanceVacuumCharacteristic Impedance of Vacuum: Z_0 = mu_0*c_0 [Ohm = m^2 kg s^-3 A^-2] (defined, exact; 2007 CODATA)
Public fieldStatic memberClassicalElectronRadiusClassical Electron Radius: [m] (2007 CODATA)
Public fieldStatic memberComptonWavelengthElectron Compton Wavelength: [m] (2007 CODATA)
Public fieldStatic memberConductanceQuantumConductance Quantum: G_0 = 2*e^2/h [S = m^-2 kg^-1 s^3 A^2] (2007 CODATA)
Public fieldStatic memberDecaThe SI prefix factor corresponding to 10
Public fieldStatic memberDeciThe SI prefix factor corresponding to 0.1
Public fieldStatic memberDegreeThe number (pi)/180 - factor to convert from Degree (deg) to Radians (rad).
Public fieldStatic memberDeuteronMagneticMomentDeuteron Magnetic Moment: [J T^-1] (2007 CODATA)
Public fieldStatic memberDeuteronMassDeuteron Mass: [kg] (2007 CODATA)
Public fieldStatic memberDeuteronMassEnegryEquivalentDeuteron Mass Energy Equivalent: [J] (2007 CODATA)
Public fieldStatic memberDeuteronMolarMassDeuteron Molar Mass: [kg mol^-1] (2007 CODATA)
Public fieldStatic memberDiracsConstantReduced Planck's constant: h_bar = h / (2*Pi) [J s = m^2 kg s^-1] (2007 CODATA)
Public fieldStatic memberEThe number e
Public fieldStatic memberElectricPermittivityElectric Permittivity in Vacuum: epsilon_0 = 1/(mu_0*c_0^2) [F m^-1 = A^2 s^4 kg^-1 m^-3] (defined, exact; 2007 CODATA)
Public fieldStatic memberElectronGFactorElecton G-Factor: [1] (2007 CODATA)
Public fieldStatic memberElectronMagneticMomentElectron Magnetic Moment: [J T^-1] (2007 CODATA)
Public fieldStatic memberElectronMassElectron Mass: [kg] (2007 CODATA)
Public fieldStatic memberElectronMassEnergyEquivalentElectron Mass Energy Equivalent: [J] (2007 CODATA)
Public fieldStatic memberElectronMolarMassElectron Molar Mass: [kg mol^-1] (2007 CODATA)
Public fieldStatic memberElementaryChargeElementary Electron Charge: e = 1.602176487e-19 [C = A s] (2007 CODATA)
Public fieldStatic memberEulerMascheroniThe Euler-Mascheroni constant
Public fieldStatic memberExaThe SI prefix factor corresponding to 1 000 000 000 000 000 000
Public fieldStatic memberFemtoThe SI prefix factor corresponding to 0.000 000 000 000 001
Public fieldStatic memberFermiCouplingConstantFermi Coupling Constant: G_F/(h_bar*c_0)^3 [GeV^-2] (2007 CODATA)
Public fieldStatic memberFineStructureConstantFine Structure Constant: alpha = e^2/4*Pi*e_0*h_bar*c_0 [1] (2007 CODATA)
Public fieldStatic memberGigaThe SI prefix factor corresponding to 1 000 000 000
Public fieldStatic memberGlaisherThe Glaisher constant
Public fieldStatic memberGoldenRatioThe number (1+sqrt(5))/2, also known as the golden ratio
Public fieldStatic memberGradThe number (pi)/200 - factor to convert from NewGrad (grad) to Radians (rad).
Public fieldStatic memberGravitationalConstantNewtonian Constant of Gravitation: G = 6.67429e-11 [m^3 kg^-1 s^-2] (2007 CODATA)
Public fieldStatic memberHalfSqrt3The number sqrt(3)/2
Public fieldStatic memberHartreeEnergyHartree Energy: E_h = 2*R_infty*h*c_0 [J] (2007 CODATA)
Public fieldStatic memberHectoThe SI prefix factor corresponding to 100
Public fieldStatic memberHelionMassHelion Mass: [kg] (2007 CODATA)
Public fieldStatic memberHelionMassEnegryEquivalentHelion Mass Energy Equivalent: [J] (2007 CODATA)
Public fieldStatic memberHelionMolarMassHelion Molar Mass: [kg mol^-1] (2007 CODATA)
Public fieldStatic memberInvEThe number 1/e
Public fieldStatic memberInvPiThe number 1/pi
Public fieldStatic memberInvSqrt2PiThe number 1/sqrt(2pi)
Public fieldStatic memberInvSqrtPiThe number 1/sqrt(pi)
Public fieldStatic memberJosephsonConstantJosephson Constant: K_J = 2*e/h [Hz V^-1] (2007 CODATA)
Public fieldStatic memberKhinchinThe Khinchin constant
Public fieldStatic memberKiloThe SI prefix factor corresponding to 1 000
Public fieldStatic memberLn10The number log[e](10)
Public fieldStatic memberLn2The number log[e](2)
Public fieldStatic memberLn2PiOver2The number log[e](2*pi)/2
Public fieldStatic memberLnPiThe number log[e](pi)
Public fieldStatic memberLog10EThe number log[10](e)
Public fieldStatic memberLog2EThe number log[2](e)
Public fieldStatic memberLogSqrt2PiThe number log(sqrt(2*pi))
Public fieldStatic memberLogSqrt2PiEThe number log(sqrt(2*pi*e))
Public fieldStatic memberLogTwoSqrtEOverPiThe number log(2 * sqrt(e / pi))
Public fieldStatic memberMagneticFluxQuantumMagnetic Flux Quantum: theta_0 = h/(2*e) [Wb = m^2 kg s^-2 A^-1] (2007 CODATA)
Public fieldStatic memberMagneticPermeabilityMagnetic Permeability in Vacuum: mu_0 = 4*Pi * 10^-7 [N A^-2 = kg m A^-2 s^-2] (defined, exact; 2007 CODATA)
Public fieldStatic memberMegaThe SI prefix factor corresponding to 1 000 000
Public fieldStatic memberMicroThe SI prefix factor corresponding to 0.000 001
Public fieldStatic memberMilliThe SI prefix factor corresponding to 0.001
Public fieldStatic memberMuonComptonWavelengthMuon Compton Wavelength: [m] (2007 CODATA)
Public fieldStatic memberMuonGFactorMuon G-Factor: [1] (2007 CODATA)
Public fieldStatic memberMuonMagneticMomentMuon Magnetic Moment: [J T^-1] (2007 CODATA)
Public fieldStatic memberMuonMassMuon Mass: [kg] (2007 CODATA)
Public fieldStatic memberMuonMassEnegryEquivalentMuon Mass Energy Equivalent: [J] (2007 CODATA)
Public fieldStatic memberMuonMolarMassMuon Molar Mass: [kg mol^-1] (2007 CODATA)
Public fieldStatic memberNanoThe SI prefix factor corresponding to 0.000 000 001
Public fieldStatic memberNeutralDecibelThe number ln(10)/10 - factor to convert from Neutral Decibel (dB) to Neper (Np). Use this version when either both or neither of the Decibel and the compared values represent powers.
Public fieldStatic memberNeutronComptonWavelengthNeuron Compton Wavelength: [m] (2007 CODATA)
Public fieldStatic memberNeutronGFactorNeutron G-Factor: [1] (2007 CODATA)
Public fieldStatic memberNeutronGyromagneticRatioNeutron Gyro-Magnetic Ratio: [s^-1 T^-1] (2007 CODATA)
Public fieldStatic memberNeutronMagneticMomentNeutron Magnetic Moment: [J T^-1] (2007 CODATA)
Public fieldStatic memberNeutronMassNeutron Mass: [kg] (2007 CODATA)
Public fieldStatic memberNeutronMassEnegryEquivalentNeutron Mass Energy Equivalent: [J] (2007 CODATA)
Public fieldStatic memberNeutronMolarMassNeutron Molar Mass: [kg mol^-1] (2007 CODATA)
Public fieldStatic memberNuclearMagnetonNuclear Magneton: mu_N = e*h_bar/2*m_p [J T^-1] (2007 CODATA)
Public fieldStatic memberPetaThe SI prefix factor corresponding to 1 000 000 000 000 000
Public fieldStatic memberPiThe number pi
Public fieldStatic memberPi2The number pi*2
Public fieldStatic memberPi3Over2The number pi*3/2
Public fieldStatic memberPicoThe SI prefix factor corresponding to 0.000 000 000 001
Public fieldStatic memberPiOver2The number pi/2
Public fieldStatic memberPiOver4The number pi/4
Public fieldStatic memberPlancksConstantPlanck's constant: h = 6.62606896e-34 [J s = m^2 kg s^-1] (2007 CODATA)
Public fieldStatic memberPlancksLengthPlanck length: l_p = h_bar/(m_p*c_0) [m] (2007 CODATA)
Public fieldStatic memberPlancksMassPlanck mass: m_p = (h_bar*c_0/G)^(1/2) [kg] (2007 CODATA)
Public fieldStatic memberPlancksTemperaturePlanck temperature: T_p = (h_bar*c_0^5/G)^(1/2)/k [K] (2007 CODATA)
Public fieldStatic memberPlancksTimePlanck time: t_p = l_p/c_0 [s] (2007 CODATA)
Public fieldStatic memberPowerDecibelThe number ln(10)/20 - factor to convert from Power Decibel (dB) to Neper (Np). Use this version when the Decibel represent a power gain but the compared values are not powers (e.g. amplitude, current, voltage).
Public fieldStatic memberProtonComptonWavelengthProton Compton Wavelength: [m] (2007 CODATA)
Public fieldStatic memberProtonGFactorProton G-Factor: [1] (2007 CODATA)
Public fieldStatic memberProtonGyromagneticRatioProton Gyro-Magnetic Ratio: [s^-1 T^-1] (2007 CODATA)
Public fieldStatic memberProtonMagneticMomentProton Magnetic Moment: [J T^-1] (2007 CODATA)
Public fieldStatic memberProtonMassProton Mass: [kg] (2007 CODATA)
Public fieldStatic memberProtonMassEnergyEquivalentProton Mass Energy Equivalent: [J] (2007 CODATA)
Public fieldStatic memberProtonMolarMassProton Molar Mass: [kg mol^-1] (2007 CODATA)
Public fieldStatic memberQuantumOfCirculationQuantum of Circulation: h/2*m_e [m^2 s^-1] (2007 CODATA)
Public fieldStatic memberRydbergConstantRydberg Constant: R_infty = alpha^2*m_e*c_0/2*h [m^-1] (2007 CODATA)
Public fieldStatic memberShieldedProtonGyromagneticRatioProton Shielded Gyro-Magnetic Ratio: [s^-1 T^-1] (2007 CODATA)
Public fieldStatic memberShieldedProtonMagneticMomentProton Shielded Magnetic Moment: [J T^-1] (2007 CODATA)
Public fieldStatic memberSizeOfComplex The size of a Complex in bytes.
Public fieldStatic memberSizeOfComplex32 The size of a Complex in bytes.
Public fieldStatic memberSizeOfDouble The size of a double in bytes.
Public fieldStatic memberSizeOfFloat The size of a float in bytes.
Public fieldStatic memberSizeOfInt The size of an int in bytes.
Public fieldStatic memberSpeedOfLightSpeed of Light in Vacuum: c_0 = 2.99792458e8 [m s^-1] (defined, exact; 2007 CODATA)
Public fieldStatic memberSqrt1Over2The number sqrt(1/2) = 1/sqrt(2) = sqrt(2)/2
Public fieldStatic memberSqrt2The number sqrt(2)
Public fieldStatic memberSqrt2PiThe number sqrt(2pi)
Public fieldStatic memberSqrt2PiEThe number sqrt(2*pi*e)
Public fieldStatic memberSqrt3The number sqrt(3)
Public fieldStatic memberSqrtEThe number sqrt(e)
Public fieldStatic memberSqrtPiThe number sqrt(pi)
Public fieldStatic memberSqrtPiOver2The number sqrt(pi/2)
Public fieldStatic memberTauComptonWavelengthTau Compton Wavelength: [m] (2007 CODATA)
Public fieldStatic memberTauMassTau Mass: [kg] (2007 CODATA)
Public fieldStatic memberTauMassEnergyEquivalentTau Mass Energy Equivalent: [J] (2007 CODATA)
Public fieldStatic memberTauMolarMassTau Molar Mass: [kg mol^-1] (2007 CODATA)
Public fieldStatic memberTeraThe SI prefix factor corresponding to 1 000 000 000 000
Public fieldStatic memberThomsonCrossSectionThomson Cross Section: [m^2] (2002 CODATA)
Public fieldStatic memberTwoInvPiThe number 2/pi
Public fieldStatic memberTwoInvSqrtPiThe number 2/sqrt(pi)
Public fieldStatic memberTwoSqrtEOverPiThe number 2 * sqrt(e / pi)
Public fieldStatic memberVonKlitzingConstantVon Klitzing Constant: R_K = h/e^2 [Ohm = m^2 kg s^-3 A^-2] (2007 CODATA)
Public fieldStatic memberWeakMixingAngleWeak Mixin Angle: sin^2(theta_W) [1] (2007 CODATA)
Public fieldStatic memberYoctoThe SI prefix factor corresponding to 0.000 000 000 000 000 000 000 001
Public fieldStatic memberYottaThe SI prefix factor corresponding to 1 000 000 000 000 000 000 000 000
Public fieldStatic memberZeptoThe SI prefix factor corresponding to 0.000 000 000 000 000 000 001
Public fieldStatic memberZettaThe SI prefix factor corresponding to 1 000 000 000 000 000 000 000
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