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NumPy · Function

np.isclose

Checks whether corresponding values in two array-like inputs are close within relative and absolute tolerances. It returns Boolean results and can optionally treat matching NaN values as equal.

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Syntax

numpy.isclose(a, b, rtol=1e-05, atol=1e-08, equal_nan=False)

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Source: numpy.isclose — NumPy v2.5 Manual. Checked 2026-11-03.