bundles / scipy latest / scipy / constants / _codata / precision
function
scipy.constants._codata:precision
source: build-install/usr/lib/python3.14/site-packages/scipy/constants/_codata.py:2181
Signature
def precision(key: str) → floatSummary
Relative precision in physical_constants indexed by key.
Parameters
key: strKey in dictionary
physical_constants
Returns
prec: floatRelative precision in
physical_constantscorresponding tokey
Notes
Array API Standard Support
precision is not in-scope for support of Python Array API Standard compatible backends other than NumPy.
See dev-arrayapi for more information.
Examples
from scipy import constants
✓constants.precision('proton mass')
✗3.1088914472088803e-10
Aliases
scipy.constants.precision