logical_not(x, /, out=None, *, where=True, casting='same_kind', order='K', dtype=None, subok=True[, signature, extobj])

Parameters

x : array_like

Logical NOT is applied to the elements of x.

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

This condition is broadcast over the input. At locations where the condition is True, the :None:None:`out` array will be set to the ufunc result. Elsewhere, the :None:None:`out` array will retain its original value. Note that if an uninitialized :None:None:`out` array is created via the default out=None , locations within it where the condition is False will remain uninitialized.

**kwargs :

For other keyword-only arguments, see the ufunc docs <ufuncs.kwargs> .

Returns

y : bool or ndarray of bool

Boolean result with the same shape as x of the NOT operation on elements of x. This is a scalar if x is a scalar.

Compute the truth value of NOT x element-wise.

See Also

logical_and

logical_or

logical_xor

Examples

This example is valid syntax, but we were not able to check execution

>>> np.logical_not(3)
False

This example is valid syntax, but we were not able to check execution

>>> np.logical_not([True, False, 0, 1])
array([False,  True,  True, False])

This example is valid syntax, but we were not able to check execution

>>> x = np.arange(5)
... np.logical_not(x<3)
array([False, False, False,  True,  True])

See :

Back References

The following pages refer to to this document either explicitly or contain code examples using this.

numpy.ma.core.logical_xor numpy.ma.core.logical_or numpy.ma.core.logical_and

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