erf¶

paddle. erf ( x, name=None ) [source]

Erf Operator For more details, see [Error function](https://en.wikipedia.org/wiki/Error_function).

Equation:

\[\begin{split}out = \\frac{2}{\\sqrt{\\pi}} \\int_{0}^{x}e^{- \\eta^{2}}d\\eta\end{split}\]

Parameters

x (Tensor) – The input tensor, it’s data type should be float32, float64.

Returns

The output of Erf op, dtype: float32 or float64, the same as the input, shape: the same as the input.

Return type

Tensor

Examples

import paddle
x = paddle.to_tensor([-0.4, -0.2, 0.1, 0.3])
out = paddle.erf(x)
print(out)
# [-0.42839236 -0.22270259  0.11246292  0.32862676]