scipy.constants.precision

scipy.constants.precision(key)[source]

Relative precision in physical_constants indexed by key

Parameters
keyPython string or unicode

Key in dictionary physical_constants

Returns
precfloat

Relative precision in physical_constants corresponding to key

Examples

>>> from scipy import constants
>>> constants.precision(u'proton mass')
5.1e-37
scipy.constants.unit scipy.constants.find