arctan

→Tensor

arctan(input: Tensor)

Element-wise inverse tangent in radians.

Computes $\arctan(x)$ . Always returns a value in $(-\pi/2, \pi/2)$ .

inputTensor

Input tensor.

Tensor

Element-wise result with the same shape as input.

Mathematical definition:

\text{out}_i = \arctan(\text{input}_i)

Gradient: $1 / (1 + x^{2})$ . For two-argument quadrant-aware arctan, use atan2.

>>> import lucid
>>> x = lucid.tensor([1.0, 2.0, 3.0])
>>> lucid.arctan(x)
Tensor([...])