mxnet.np.copysign¶
-
copysign
(x1, x2, out=None, **kwargs)¶ Change the sign of x1 to that of x2, element-wise.
If x2 is a scalar, its sign will be copied to all elements of x1.
- Parameters
x1 (ndarray or scalar) – Values to change the sign of.
x2 (ndarray or scalar) – The sign of x2 is copied to x1.
out (ndarray or None, optional) – A location into which the result is stored. It must be of the right shape and right type to hold the output. If not provided or None,a freshly-allocated array is returned.
- Returns
out (ndarray or scalar) – The values of x1 with the sign of x2. This is a scalar if both x1 and x2 are scalars.
.. note:: – This function differs from the original numpy.copysign in the following aspects:
where
param is not supported.
Examples
>>> np.copysign(1.3, -1) -1.3 >>> 1/np.copysign(0, 1) inf >>> 1/np.copysign(0, -1) -inf
>>> a = np.array([-1, 0, 1]) >>> np.copysign(a, -1.1) array([-1., -0., -1.]) >>> np.copysign(a, np.arange(3)-1) array([-1., 0., 1.])
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