Atomic unit of energy.
value = hartree [value,sigma] = hartree
hartree
returns the value of 1 Hartree (atomic unit of
energy) in SI units (Joule)
in value
and the standard
deviation in sigma
(if two output arguments are specified).
The value and the standard deviation are taken from the 2002 CODATA collection of recommended values.
amu, avogadro, barn, bmagn, bohrrad, boltzm, clight, echarge, emass, faraday, gfree, molgas, nmagn, nmass, planck, pmass, rydberg