48 lines
1.0 KiB
Markdown
48 lines
1.0 KiB
Markdown
## Sign <a name="Sign"></a> {#openvino_docs_ops_arithmetic_Sign_1}
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**Versioned name**: *Sign-1*
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**Category**: *Arithmetic unary*
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**Short description**: *Sign* performs element-wise sign operation on a given input tensor.
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**Detailed description**: *Sign* performs element-wise sign operation on a given input tensor, based on the following mathematical formula:
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\f[
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a_{i} = sign(a_{i})
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\f]
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**Attributes**: *Sign* operation has no attributes.
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**Inputs**
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* **1**: A tensor of type *T* and arbitrary shape. **Required.**
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**Outputs**
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* **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).
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**Types**
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* *T*: any numeric type.
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**Example**
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```xml
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<layer ... type="Sign">
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<input>
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<port id="0">
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<dim>256</dim>
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<dim>56</dim>
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</port>
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</input>
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<output>
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<port id="1">
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<dim>256</dim>
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<dim>56</dim>
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</port>
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</output>
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</layer>
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```
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