97 lines
2.5 KiB
Markdown
97 lines
2.5 KiB
Markdown
## Add <a name="Add"></a> {#openvino_docs_ops_arithmetic_Add_1}
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**Versioned name**: *Add-1*
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**Category**: Arithmetic binary operation
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**Short description**: *Add* performs element-wise addition operation with two given tensors applying broadcasting rule specified in the *auto_broacast* attribute.
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**Detailed description**
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Before performing arithmetic operation, input tensors *a* and *b* are broadcasted if their shapes are different and `auto_broadcast` attribute is not `none`. Broadcasting is performed according to `auto_broadcast` value.
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After broadcasting *Add* performs addition operation for the input tensors *a* and *b* using the formula below:
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\f[
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o_{i} = a_{i} + b_{i}
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\f]
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**Attributes**:
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* *auto_broadcast*
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* **Description**: specifies rules used for auto-broadcasting of input tensors.
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* **Range of values**:
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* *none* - no auto-broadcasting is allowed, all input shapes must match,
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* *numpy* - numpy broadcasting rules, description is available in [Broadcast Rules For Elementwise Operations](../broadcast_rules.md),
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* *pdpd* - PaddlePaddle-style implicit broadcasting, description is available in [Broadcast Rules For Elementwise Operations](../broadcast_rules.md).
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* **Type**: string
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* **Default value**: "numpy"
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* **Required**: *no*
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**Inputs**
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* **1**: A tensor of type *T* and arbitrary shape and rank. **Required.**
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* **2**: A tensor of type *T* and arbitrary shape and rank. **Required.**
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**Outputs**
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* **1**: The result of element-wise addition operation. A tensor of type *T* with shape equal to broadcasted shape of the two inputs.
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**Types**
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* *T*: any numeric type.
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**Examples**
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*Example 1*
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```xml
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<layer ... type="Add">
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<data auto_broadcast="none"/>
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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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<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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</input>
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<output>
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<port id="2">
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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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*Example 2: broadcast*
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```xml
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<layer ... type="Add">
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<data auto_broadcast="numpy"/>
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<input>
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<port id="0">
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<dim>8</dim>
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<dim>1</dim>
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<dim>6</dim>
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<dim>1</dim>
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</port>
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<port id="1">
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<dim>7</dim>
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<dim>1</dim>
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<dim>5</dim>
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</port>
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</input>
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<output>
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<port id="2">
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<dim>8</dim>
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<dim>7</dim>
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<dim>6</dim>
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<dim>5</dim>
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</port>
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</output>
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</layer>
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```
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