# tensorplay.functional.atan

Source: https://www.tensorplay.cn/docs/generated/tensorplay.functional.atan.html

```python
tensorplay.functional.atan(input: Tensor, *, out: Tensor | None) → Tensor
```

Returns a new tensor with the arctangent of the elements of input.

$$\text{out}_{i} = \tan^{-1}(\text{input}_{i})$$

Parameters:

input ([Tensor](/docs/generated/tensorplay.Tensor.html#tensorplay.Tensor)) – the input tensor.

Keyword Arguments:

out ([Tensor](/docs/generated/tensorplay.Tensor.html#tensorplay.Tensor), optional) – the output tensor.

Example:

```
>>> a = tensorplay.randn(4)
>>> a
tensor([ 0.2341,  0.2539, -0.6256, -0.6448])
>>> tensorplay.atan(a)
tensor([ 0.2299,  0.2487, -0.5591, -0.5727])
```