sqrt

→Tensor

sqrt(input: Tensor)

Element-wise square root.

Computes the non-negative square root of each entry. Negative inputs produce NaN.

inputTensor

Input tensor.

Tensor

Element-wise result with the same shape as input.

Mathematical definition:

\text{out}_i = \sqrt{\text{input}_i}, \quad \text{input}_i \ge 0

Gradient: $1 / (2 \sqrt{x})$ . Diverges at x = 0.

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