Enter below a function using normal fortran notation (e.g., .5*g*x^2, note: "^" = "**" is OK; the mass of 1 amu is 1.66054E-27 kg = 1.66054 × 10-27 kg; trig functions like sin and asin = sin-1 = arcsin are designed for radian measure; sqrt(1/(mu0*epsilon0)))

f(x)=

Non-zero values of x:
x=
x=
x=
x=

## Constants in MKS units:

speed of light: c = 2.9979 × 108 m/s

Planck's constant: h = 6.6261 × 10-34 J·s

Planck's constant divided by 2 pi: hbar = 1.0546 × 10-34 J·s

Charge on a proton: e = 1.6022 × 10-19 C   esu = 4.8032 × 10-10

Conversion constant: hbar*c/e = 197.33 MeV·fm

Electron mass: me and me2 = 9.1094 × 10-31 kg or 0.51100 MeV/c2

Proton mass: mp and mp2 = 1.6726 × 10-27 kg or 938.27 MeV/c2 or

permittivity of free space: epsilon0 = 8.8542 × 10-12 F/m

permeability of free space: mu0 = 1.2566 × 10-6 N/A2

fine structure constant: alpha = 7.2974 × 10-3

Bohr radius: a = 5.2918 × 10-11 m

Rydberg energy: Ry and Ry2 = 2.1799 × 10-18 J or 13.606 eV

Newton's gravitational constant: Gn = 6.6726 × 10-11 m3·kg-1·s-2

acceleration of gravity: g = 9.8066 m/s2

Avogradro's constant: Na = 6.0221 × 1023

Boltzmann's constant: Kb = 1.3807 × 10-23 J/K

Wein's displacement law constant: b = 2.8978 × 10-3 m·K

Stefan-Boltzmann constant: sigma = 5.6705 × 10-8 W·m-2·K-4

parsec: pc = 3.0857 × 1016 m

Astronomical unit: AU = 1.4960 × 1011 m

mass of Sun: Msun = 1.9889 × 1030 kg

radius of Sun: Rsun = 6.9600 × 108 m

Solar luminosity: Lsun = 3.8460 × 1026 W

mass of Earth: Mearth = 5.9737 × 1024 kg

radius of Earth: Rearth = 6.3781 × 106 m

quantized hall "resistance": h/e^2= 2.5813 × 104 Ohm

frequency of 1eV photon: e/h= 2.4180 × 1014 Hz

wavelength of 1eV photon: h*c/e= 1.2398 × 10-6 m

Temperature for kT = 1 eV: e/kb= 1.1604 × 104 K

1 eV per molecule = Na*e/4184 = 23.061 kcal/mole

standard pressure: atm= 1.0132 × 105 N/m2

gas constant: R = Na*kb = 8.3145 J

### Variables:

a= .5291772490000000E-10 b= .2897756000000000E-02 c= 299792458.0000000
x= .000000000000000 y= .000000000000000 z= .000000000000000

show= 2.000000000000000

F(X)=X

H = 6.626075500000000E-034
HBAR = 1.054572669125102E-034
E = 1.602177330000000E-019
ESU = 4.803206800000000E-010
ME = 9.109389699999999E-031
ME2 = 0.510999060000000
MP = 1.672623100000000E-027
MP2 = 938.272310000000
EPSILON0= 8.854187817000000E-012
MU0 = 1.256637061435917E-006
ALPHA = 7.297353079644819E-003
RY2 = 13.6056981000000
RY = 2.179874105464407E-018
GN = 6.672590000000000E-011
G = 9.80665000000000
NA = 6.022136700000000E+023
KB = 1.380658000000000E-023
SIGMA = 5.670510000000000E-008
PC = 3.085677580700000E+016
AU = 149597870660.000
MSUN = 1.988920000000000E+030
RSUN = 696000000.000000
LSUN = 3.846000000000000E+026
MEARTH = 5.973700000000000E+024
REARTH = 6378140.00000000
ATM = 101325.000000000
R = 8.31451121194860