GSL constants
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GSL constants

For more information about this constants see the documentation of GSL.

ConstantDescription
c The speed of light in vacuum
mu0The permeability of free space
e0The permittivity of free space
NaAvogadro's number
FThe molar charge of 1 Faraday
kThe Boltzmann constant
R0The molar gas constant
V0The standard gas volume
GaussThe magnetic field of 1 Gauss
muThe length of 1 micron
haThe area of 1 hectare
mphThe speed of 1 mile per hour
kmhThe speed of 1 kilometer per hour
auThe length of 1 astronomical unit (mean earth-sun distance)
GThe gravitational constant
lyThe distance of 1 light-year
pcThe distance of 1 parsec
gThe standard gravitational acceleration on Earth
msThe mass of the Sun
eThe charge of the electron
eVThe energy of 1 electron volt
amuThe unified atomic mass
meThe mass of the electron
mmuThe mass of the muon
mpThe mass of the proton
mnThe mass of the neutron
alphaThe electromagnetic fine structure constant
RyThe Rydberg constant
a0The Bohr radius
AThe length of 1 angstrom
barn The area of 1 barn
muBThe Bohr Magneton
muNThe Nuclear Magneton
mueThe magnetic moment of the electron
mupThe magnetic moment of the proton
minThe number of seconds in 1 minute
hThe number of seconds in 1 hour
d The number of seconds in 1 day
weekThe number of seconds in 1 week
inThe length of 1 inch
ftThe length of 1 foot
yardThe length of 1 yard
mileThe length of 1 mile
milThe length of 1 mil (1/1000th of an inch)
nmileThe length of 1 nautical mile
fathomThe length of 1 fathom
knotThe speed of 1 knot
pt The length of 1 printer's point (1/72 inch)
texptThe length of 1 TeX point (1/72.27 inch)
acreThe area of 1 acre
ltrThe volume of 1 liter
us_gallonThe volume of 1 US gallon
can_gallonThe volume of 1 Canadian gallon
uk_gallonThe volume of 1 UK gallon
quartThe volume of 1 quart
pintThe volume of 1 pint
poundThe mass of 1 pound
ounceThe mass of 1 ounce
tonThe mass of 1 ton
mtonThe mass of 1 metric ton (1000 kg)
uk_tonThe mass of 1 UK ton
troy_ounceThe mass of 1 troy ounce
caratThe mass of 1 carat
gram_forceThe force of 1 gram weight
pound_forceThe force of 1 pound weight
kilepound_forceThe force of 1 kilopound weight
poundalThe force of 1 poundal
calThe energy of 1 calorie
btuThe energy of 1 British Thermal Unit
thermThe energy of 1 Therm
hpThe power of 1 horsepower
barThe pressure of 1 bar
atmThe pressure of 1 standard atmosphere
torrThe pressure of 1 torr
mhgThe pressure of 1 meter of mercury
inhgThe pressure of 1 inch of mercury
inh2oThe pressure of 1 inch of water
psiThe pressure of 1 pound per square inch
poiseThe dynamic viscosity of 1 poise
stokesThe kinematic viscosity of 1 stokes
stilbThe luminance of 1 stilb
lumenThe luminous flux of 1 lumen
luxThe illuminance of 1 lux
photThe illuminance of 1 phot
ftcandleThe illuminance of 1 footcandle
lambertThe luminance of 1 lambert
ftlambertThe luminance of 1 footlambert
curieThe activity of 1 curie
roentgenThe exposure of 1 roentgen
radThe absorbed dose of 1 rad

The following constants are the same constants in cgs system :

ConstantDescription
c_cgs 
G_cgs 
h_cgs 
hbar_cgs 
mu0_cgs 
au_cgs 
ly_cgs 
pc_cgs 
g_cgs 
eV_cgs 
me_cgs 
mmu_cgs 
mp_cgs 
mn_cgs 
Ry_cgs 
k_cgs 
muB_cgs 
muN_cgs 
mue_cgs 
mup_cgs 
R0_cgs 
V0_cgs 
in_cgs 
ft_cgs 
yard_cgs 
mile_cgs 
nile_cgs 
fathom_cgs 
mil_cgs 
pt_cgs 
texpt_cgs 
mu_cgs 
A_cgs 
ha_cgs 
acre_cgs 
barn_cgs 
ltr_cgs 
us_gallon-cgs 
quart_cgs 
pint_cgs 
cup_cgs 
fluid_ouncs_cgs 
tablespoon_cgs 
teaspoon_cgs 
can_gallon_cgs 
uk_gallon_cgs 
mph_cgs 
kmh_cgs 
knot_cgs 
pound_cgs 
ouncs_cgs 
ton_cgs 
mton_cgs 
uk_ton_cgs 
troy_ounce_cgs 
carat_cgs 
amu_cgs 
gram_cgs 
pound_force_cgs 
kilopound_force_cgs 
poundal_cgs 
cal_cgs 
btu_cgs 
therm_cgs 
hp_cgs 
bar_cgs 
atm_cgs 
torr_cgs 
mhg_cgs 
inhg_cgs 
inh2o_cgs 
psi_cgs 
poise_cgs 
stokes_cgs 
F_cgs 
e_cgs 
G_cgs 
stilb_cgs 
lumen_cgs 
lux_cgs 
phot_cgs 
ftcandle_cgs 
lambert_cgs 
ftlambert_cgs 
curie_cgs 
roentgen_cgs 
rad_cgs 
sm_cgs 
a0_cgs 
e0_cgs 
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