(l-onnx-doc-Atan)= # Atan (l-onnx-op-atan-22)= ## Atan - 22 ### Version - **name**: [Atan (GitHub)](https://github.com/onnx/onnx/blob/main/docs/Operators.md#Atan) - **domain**: `main` - **since_version**: `22` - **function**: `False` - **support_level**: `SupportType.COMMON` - **shape inference**: `True` This version of the operator has been available **since version 22**. ### Summary Calculates the arctangent (inverse of tangent) of the given input tensor, element-wise. ### Inputs - **input** (heterogeneous) - **T**: Input tensor ### Outputs - **output** (heterogeneous) - **T**: The arctangent of the input tensor computed element-wise ### Type Constraints * **T** in ( `tensor(bfloat16)`, `tensor(double)`, `tensor(float)`, `tensor(float16)` ): Constrain input and output types to float tensors. ```{toctree} text_diff_Atan_7_22 ``` (l-onnx-op-atan-7)= ## Atan - 7 ### Version - **name**: [Atan (GitHub)](https://github.com/onnx/onnx/blob/main/docs/Operators.md#Atan) - **domain**: `main` - **since_version**: `7` - **function**: `False` - **support_level**: `SupportType.COMMON` - **shape inference**: `True` This version of the operator has been available **since version 7**. ### Summary Calculates the arctangent (inverse of tangent) of the given input tensor, element-wise. ### Inputs - **input** (heterogeneous) - **T**: Input tensor ### Outputs - **output** (heterogeneous) - **T**: The arctangent of the input tensor computed element-wise ### Type Constraints * **T** in ( `tensor(double)`, `tensor(float)`, `tensor(float16)` ): Constrain input and output types to float tensors.