diff_values#
- astropy.utils.diff.diff_values(a, b, rtol=0.0, atol=0.0)[source]#
 Diff two scalar values. If both values are floats, they are compared to within the given absolute and relative tolerance.
- Parameters:
 - a, b
python:int,python:float,python:str Scalar values to compare.
- rtol, atol
python:float Relative and absolute tolerances as accepted by
numpy.allclose().
- a, b
 - Returns:
 - is_differentbool
 Trueif they are different, elseFalse.