mindspore2022/docs/api/api_python/ops/mindspore.ops.Erf.rst

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mindspore.ops.Erf
=================
.. py:class:: mindspore.ops.Erf()
逐元素计算 `x` 的高斯误差函数。
.. math::
erf(x)=\frac{2} {\sqrt{\pi}} \int\limits_0^{x} e^{-t^{2}} dt
**输入:**
- **x** (Tensor) - 高斯误差函数的输入Tensor。数据类型必须为float16或float32。任意维度小于8的Tensor。
**输出:**
Tensor具有与 `x` 相同的数据类型和shape。
**异常:**
- **TypeError** - `x` 的数据类型既不是float16也不是float32。
**支持平台:**
``Ascend`` ``GPU``
**样例:**
>>> x = Tensor(np.array([-1, 0, 1, 2, 3]), mindspore.float32)
>>> erf = ops.Erf()
>>> output = erf(x)
>>> print(output)
[-0.8427168 0. 0.8427168 0.99530876 0.99997765]