constants science

i=1i;
pi=3.14159265358979323846264338327950;
e=2.71828182845904523536028747135266;
euler=0.57721566490153286061;
golden=(sqrt 5 + 1)/2;
c=299792458;
µ0=3.14159265358979323846264338327950*4.0e-7;
e0=8.85418782e-12;
ec=1.60217733e-19;
h=6.6260755e-34;
hbar=6.6260755e-34 / (2*3.14159265358979323846264338327950);
Na=6.0221367e23;
Rinf=1.0973731534e7;
a0=0.529177249e-10;
R=8.314510;
k=1.380658e-23;
sigma=5.67051e-8;
Gc=6.67259e-11;
g=9.80665;
F=96485.309;
Cc=8.9875517873682e9;
Me=9.1093897e-31;
Mp=1.6726231e-27;
Mn=1.6749286e-27;
u=1.6605402e-27;