4 List of physical constants

The following table lists all of the physical constants which are defined by default in Pyxplot:


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Name

Description

Approximate Value

e

 
$$e$ &  $2.7182818$ \\ {\tt euler} &  The Euler constant &  $0.57721566$ \\ {\tt false} &  Boolean truth value &  0 \\ {\tt goldenRatio} &  The golden ratio &  $1.618034$ \\ {\tt i} &  The square-root of $-1$ &  $i$ \\ {\tt phy.alpha} &  The fine-structure constant &  $0.0072973525$ \\ {\tt phy.c} &  The speed of light &  $299792458 m/s$ \\ {\tt phy.epsilon\_ 0} &  The permittivity of free space &  $8.85418782×10^-12 F/m$ \\ {\tt phy.G} &  The gravitational constant &  $6.673×10^-11 m^3/kg/s^2$ \\ {\tt phy.g} &  The mean terrestrial acceleration due to gravity &  $9.80665 m/s^2$ \\ {\tt phy.h} &  The Planck constant &  $6.62606896×10^-34 J s$ \\ {\tt phy.hbar} &  The Planck constant$ / 2π$ &  $1.05457163×10^-34 J s$ \\ {\tt phy.kB} &  The Boltzmann constant &  $1.3806504×10^-23 J/K$ \\ {\tt phy.Lsun} &  The luminosity of the Sun &  $3.839×10^26 W$ \\ {\tt phy.Msun} &  The mass of the Sun &  $1.98892×10^30 kg$ \\ {\tt phy.mu\_ 0} &  The permeability of free space &  $1.25663706×10^-6 N/A^2$ \\ {\tt phy.mu\_ b} &  The Bohr magneton &  $9.27400899×10^-24 J/T$ \\ {\tt phy.m\_ e} &  The mass of the electron &  $9.10938188×10^-31 kg$ \\ {\tt phy.m\_ muon} &  The mass of the muon &  $1.88353109×10^-28 kg$ \\ {\tt phy.m\_ n} &  The mass of the neutron &  $1.67492716×10^-27 kg$ \\ {\tt phy.m\_ p} &  The mass of the proton &  $1.67262158×10^-27 kg$ \\ {\tt phy.m\_ u} &  The unified mass constant &  $1.66053878×10^-27 kg$ \\ {\tt phy.NA} &  Avogadro’s number &  $6.02214199×10^23 mol^-1$ \\ {\tt phy.q} &  The fundamental charge &  $1.60217649×10^-19 C$ \\ {\tt phy.R} &  The gas constant &  $8.314472 J/K/mol$ \\ {\tt phy.Rsun} &  The radius of the Sun &  $695500000 m$ \\ {\tt phy.Ry} &  The Rydberg constant &  $10973732 m^-1$ \\ {\tt phy.sigma} &  The Stefan-Boltzmann constant &  $5.67040047×10^-8 kg/s^3/K^4$ \\ {\tt pi} &  $π$ &  $3.1415927$ \\ {\tt true} &  Boolean truth value &  1 \\ {\tt version} &  Pyxplot version string &  “0.9.2” \\ \hline $


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