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mindspore.ops.digamma
=====================
.. py:function:: mindspore.ops.digamma(input)
逐元素计算输入tensor的伽玛函数的对数导数。
.. math::
P(x) = \frac{d}{dx}(\ln (\Gamma(x)))
.. warning::
这是一个实验性API，后续可能修改或删除。
参数：
- **input** (Tensor) - 输入tensor。
返回：
Tensor