mars.tensor.conj#

mars.tensor.conj(x, out=None, where=None, **kwargs)[source]#

Return the complex conjugate, element-wise.

The complex conjugate of a complex number is obtained by changing the sign of its imaginary part.

Parameters

x (array_like) – Input value.
out (Tensor, None, or tuple of Tensor 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 tensor 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 –

Returns

y – The complex conjugate of x, with same dtype as y.

Return type

Tensor

Examples

>>> import mars.tensor as mt

>>> mt.conjugate(1+2j).execute()
(1-2j)

>>> x = mt.eye(2) + 1j * mt.eye(2)
>>> mt.conjugate(x).execute()
array([[ 1.-1.j,  0.-0.j],
       [ 0.-0.j,  1.-1.j]])