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tf.raw_ops.Lgamma

Computes the log of the absolute value of Gamma(x) element-wise.

For positive numbers, this function computes log((input - 1)!) for every element in the tensor. lgamma(5) = log((5-1)!) = log(4!) = log(24) = 3.1780539

Example:

x = tf.constant([0, 0.5, 1, 4.5, -4, -5.6])
tf.math.lgamma(x) ==> [inf, 0.5723649, 0., 2.4537368, inf, -4.6477685]
Args
x A Tensor. Must be one of the following types: bfloat16, half, float32, float64.
name A name for the operation (optional).
Returns
A Tensor. Has the same type as x.

© 2020 The TensorFlow Authors. All rights reserved.
Licensed under the Creative Commons Attribution License 3.0.
Code samples licensed under the Apache 2.0 License.
https://www.tensorflow.org/versions/r2.3/api_docs/python/tf/raw_ops/Lgamma