Lisp-Stat / Lisp-Stat/special-functions

Fix log-gamma extremes

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Dominant language
Common Lisp
Stars
6
Forks
3
PR merge metrics
No merged PRs in 30d

Description

log-gamma does not properly handle the cases of +/- infinity

Because x is (abs n).

Originally posted by @stassats in e03dba7

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by locating the log-gamma entry point in the repository and inspect how it handles extreme inputs. Identify the expected behavior for positive and negative infinity, then verify the change with the repository's existing tests; done means both infinity cases are handled correctly.

Written by the indexing model from the issue text.

Assessment

Domain
backend
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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