exatomic.exa.util.constants module
Physical Constants
Tabulated physical constants from NIST. Note that all constants are float objects (with a slightly modified repr). This means that math operations can be performed with them directly. Note that units and uncertainty are included for each value.
constants.Planck_constant # Planck_constant(6.62607004e-34 +/-8.1e-42)
constants.Planck_constant.unit # J s
constants.Planck_constant.error # 9.1e-42