openvino/docs/ops/arithmetic/Sign_1.md

Sign

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.. meta:: :description: Learn about Sign-1 - an element-wise, arithmetic operation, which can be performed on a single tensor in OpenVINO.

Versioned name: Sign-1

Category: Arithmetic unary

Short description: Sign performs element-wise sign operation on a given input tensor.

Detailed description: Sign performs element-wise sign operation on a given input tensor, based on the following mathematical formula:

.. math::

a_{i} = sign(a_{i})

Attributes: Sign operation has no attributes.

Inputs

• 1: A tensor of type T and arbitrary shape. Required.

Outputs

• 1: The result of element-wise Sign operation. A tensor of type T with mapped elements of the input tensor to -1 (if it is negative), 0 (if it is zero), or 1 (if it is positive).

Types

• T: any numeric type.

Example

.. code-block:: xml :force:

<layer ... type="Sign">
    <input>
        <port id="0">
            <dim>256</dim>
            <dim>56</dim>
        </port>
    </input>
    <output>
        <port id="1">
            <dim>256</dim>
            <dim>56</dim>
        </port>
    </output>
</layer>

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