mindspore.ops.Sign

class mindspore.ops.Sign

Performs sign on the tensor element-wise.

$$sign(x)=\{\begin{array}{ll}-1,& ifx<0\\ 0,& ifx=0\\ 1,& ifx>0\end{array}$$

Inputs:

• x (Tensor) - The input tensor. $(N,\ast )$ where $\ast$ means, any number of additional dimensions.

Outputs:

Tensor, has the same shape and type as the x.

Raises

TypeError – If x is not a Tensor.

Supported Platforms:

Ascend CPU GPU

Examples

>>> x = Tensor(np.array([[2.0, 0.0, -1.0]]), mindspore.float32)
>>> sign = ops.Sign()
>>> output = sign(x)
>>> print(output)
[[ 1.  0. -1.]]