mindspore/docs/api/api_python/ops/mindspore.ops.func_isnan.rst

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mindspore.ops.isnan
====================
.. py:function:: mindspore.ops.isnan(x)
判断输入数据每个位置上的值是否是Nan。
.. math::
out_i = \begin{cases}
& \text{ if } x_{i} = \text{Nan},\ \ True \\
& \text{ if } x_{i} \ne \text{Nan},\ \ False
\end{cases}
其中 :math:`Nan` 表示的不是number。
**参数:**
- **x** (Tensor) - IsNan的输入任意维度的Tensor。
**返回:**
Tensor输出的shape与输入相同数据类型为bool。
**异常:**
- **TypeError** - `x` 不是Tensor。