This is documentation for an old release of NumPy (version 1.15). Read this page in the documentation of the latest stable release (version 2.2).
numpy.nextafter¶
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numpy.nextafter(x1, x2, /, out=None, *, where=True, casting='same_kind', order='K', dtype=None, subok=True[, signature, extobj]) = <ufunc 'nextafter'>¶ Return the next floating-point value after x1 towards x2, element-wise.
Parameters: - x1 : array_like
Values to find the next representable value of.
- x2 : array_like
The direction where to look for the next representable value of x1.
- out : ndarray, None, or tuple of ndarray and None, optional
A location into which the result is stored. If provided, it must have a shape that the inputs broadcast to. If not provided or None, a freshly-allocated array is returned. A tuple (possible only as a keyword argument) must have length equal to the number of outputs.
- where : array_like, optional
Values of True indicate to calculate the ufunc at that position, values of False indicate to leave the value in the output alone.
- **kwargs
For other keyword-only arguments, see the ufunc docs.
Returns: - out : ndarray or scalar
The next representable values of x1 in the direction of x2. This is a scalar if both x1 and x2 are scalars.
Examples
>>> eps = np.finfo(np.float64).eps >>> np.nextafter(1, 2) == eps + 1 True >>> np.nextafter([1, 2], [2, 1]) == [eps + 1, 2 - eps] array([ True, True])