Units: CODATA

Units: CODATA#

CODATA values for various physical constants from qcelemental.

tad_mctc.units.codata.CODATA = <tad_mctc.units.codata._CodataContext object>#

CODATA 2018 values from qcelemental 0.29.1.

tad_mctc.units.codata.get_constant(name)[source]#

Get a constant from the CODATA 2018 context.

Parameters:

name (str) – Name of the constant.

Returns:

Value of the constant.

Return type:

float

Raises:

KeyError – If the constant is not found.