Google I/O is a wrap! Catch up on TensorFlow sessions

# tfp.math.igammacinv

Computes the inverse to `tf.math.igammac` with respect to `p`.

### Used in the notebooks

Used in the tutorials

This function is defined as the solution `x` to the equation `p = tf.math.igammac(a, x)`.

# References

[1] A. Didonato and A. Morris, Computation of the Incomplete Gamma Function Ratios and their Inverse https://dl.acm.org/doi/10.1145/22721.23109

`a` A positive `float` `Tensor`. Must be broadcastable with `p`.
`p` A `float` `Tensor` whose entries lie in `[0, 1]`. Must be broadcastable with `a`.
`name` Optional Python `str` naming the operation.

`igammacinv` igammacinv(a, p). Has same type as `a`.

[{ "type": "thumb-down", "id": "missingTheInformationINeed", "label":"Missing the information I need" },{ "type": "thumb-down", "id": "tooComplicatedTooManySteps", "label":"Too complicated / too many steps" },{ "type": "thumb-down", "id": "outOfDate", "label":"Out of date" },{ "type": "thumb-down", "id": "samplesCodeIssue", "label":"Samples / code issue" },{ "type": "thumb-down", "id": "otherDown", "label":"Other" }]
[{ "type": "thumb-up", "id": "easyToUnderstand", "label":"Easy to understand" },{ "type": "thumb-up", "id": "solvedMyProblem", "label":"Solved my problem" },{ "type": "thumb-up", "id": "otherUp", "label":"Other" }]