isclose¶

astropy.units.isclose(a, b, rtol=1e-05, atol=None, equal_nan=False, **kwargs)[source]¶

Return a boolean array where two arrays are element-wise equal within a tolerance.

Parameters

a, barray_like or Quantity: Input values or arrays to compare
rtolarray_like or dimensionless Quantity: The relative tolerance for the comparison, which defaults to 1e-5. If rtol is a Quantity, then it must be dimensionless.
atolnumber or Quantity: The absolute tolerance for the comparison. The units (or lack thereof) of a, b, and atol must be consistent with each other. If None, atol defaults to zero in the appropriate units.
equal_nanbool: Whether to compare NaN’s as equal. If True, NaNs in a will be considered equal to NaN’s in b.

Raises

UnitsError: If the dimensions of a, b, or atol are incompatible, or if rtol is not dimensionless.