### `tf.digamma(x, name=None)` {#digamma}

Computes Psi, the derivative of Lgamma (the log of the absolute value of

`Gamma(x)`), element-wise.

##### Args:


*  <b>`x`</b>: A `Tensor`. Must be one of the following types: `half`, `float32`, `float64`.
*  <b>`name`</b>: A name for the operation (optional).

##### Returns:

  A `Tensor`. Has the same type as `x`.