MathConstantsUniversal

2021年10月7日

Library "MathConstantsUniversal"
Mathematical Constants

SpeedOfLight() Speed of Light in Vacuum: c_0 = 2.99792458e8 [m s^-1] (defined, exact; 2007 CODATA)

MagneticPermeability() Magnetic Permeability in Vacuum: mu_0 = 4*Pi * 10^-7 [N A^-2 = kg m A^-2 s^-2] (defined, exact; 2007 CODATA)

ElectricPermittivity() Electric 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)

CharacteristicImpedanceVacuum() Characteristic Impedance of Vacuum: Z_0 = mu_0*c_0 [Ohm = m^2 kg s^-3 A^-2] (defined, exact; 2007 CODATA)

GravitationalConstant() Newtonian Constant of Gravitation: G = 6.67429e-11 [m^3 kg^-1 s^-2] (2007 CODATA)

PlancksConstant() Planck's constant: h = 6.62606896e-34 [J s = m^2 kg s^-1] (2007 CODATA)

DiracsConstant() Reduced Planck's constant: h_bar = h / (2*Pi) [J s = m^2 kg s^-1] (2007 CODATA)

PlancksMass() Planck mass: m_p = (h_bar*c_0/G)^(1/2) [kg] (2007 CODATA)

PlancksTemperature() Planck temperature: T_p = (h_bar*c_0^5/G)^(1/2)/k [K] (2007 CODATA)

PlancksLength() Planck length: l_p = h_bar/(m_p*c_0) [m] (2007 CODATA)

PlancksTime() Planck time: t_p = l_p/c_0 (2007 CODATA)

6月20日

版本注释

v2 - Now exports constants instead of functions, improved docs a bit.