tf.math.igammac
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Compute the upper regularized incomplete Gamma function Q(a, x).
tf.math.igammac(
a, x, name=None
)
The upper regularized incomplete Gamma function is defined as:
\(Q(a, x) = Gamma(a, x) / Gamma(a) = 1 - P(a, x)\)
where
\(Gamma(a, x) = int_{x}^{\infty} t^{a-1} exp(-t) dt\)
is the upper incomplete Gama function.
Note, above P(a, x) (Igamma) is the lower regularized complete
Gamma function.
Args |
|---|
a
|
A Tensor. Must be one of the following types: float32, float64.
|
x
|
A Tensor. Must have the same type as a.
|
name
|
A name for the operation (optional).
|
Returns |
|---|
A Tensor. Has the same type as a.
|
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Last updated 2020-10-01 UTC.
[null,null,["Last updated 2020-10-01 UTC."],[],[],null,["# tf.math.igammac\n\n|----------------------------------------------------------|\n| [TensorFlow 2 version](/api_docs/python/tf/math/igammac) |\n\nCompute the upper regularized incomplete Gamma function `Q(a, x)`.\n\n#### View aliases\n\n\n**Main aliases**\n\n\\`tf.igammac\\`\n**Compat aliases for migration**\n\nSee\n[Migration guide](https://www.tensorflow.org/guide/migrate) for\nmore details.\n\n[`tf.compat.v1.igammac`](/api_docs/python/tf/math/igammac), [`tf.compat.v1.math.igammac`](/api_docs/python/tf/math/igammac), \\`tf.compat.v2.math.igammac\\`\n\n\u003cbr /\u003e\n\n tf.math.igammac(\n a, x, name=None\n )\n\nThe upper regularized incomplete Gamma function is defined as:\n\n\\\\(Q(a, x) = Gamma(a, x) / Gamma(a) = 1 - P(a, x)\\\\)\n\nwhere\n\n\\\\(Gamma(a, x) = int_{x}\\^{\\\\infty} t\\^{a-1} exp(-t) dt\\\\)\n\nis the upper incomplete Gama function.\n\nNote, above `P(a, x)` (`Igamma`) is the lower regularized complete\nGamma function.\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n| Args ---- ||\n|--------|-----------------------------------------------------------------------|\n| `a` | A `Tensor`. Must be one of the following types: `float32`, `float64`. |\n| `x` | A `Tensor`. Must have the same type as `a`. |\n| `name` | A name for the operation (optional). |\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n\u003cbr /\u003e\n\n| Returns ------- ||\n|---|---|\n| A `Tensor`. Has the same type as `a`. ||\n\n\u003cbr /\u003e"]]
TensorFlow 2 version