scipp.constants.physical_constants#

scipp.constants.physical_constants(key, with_variance=False)#

Returns the CODATA recommended value with unit of the requested physical constant.

Parameters:
  • key (str) – Key of the requested constant. See scipy.constants.physical_constants for an overview.

  • with_variance (bool, default: False) – Optional, if True, the uncertainty if the constant is included as the variance. Default is False.

Returns:

Scalar variable with unit and optional variance.

Return type:

Variable