To simplify a wide variety of calculations, some constants are predefined at the start:
PI : Circle number Pi
EULER – Euler’s number e
PHI – Golden Ratio – Phi: 1.61803398874989484820
RHO – Silver Ratio – Rho: 2.414213562373095.
STEFANBOLTZMANN – Stefan-Boltzmann constant: 5.670374419 10-8
BOLTZMANN – Boltzmann constant: 1.380649 10-23
AVOGADRO – Avogadro constant : 6.02214076 1023
