[Planeshifter]

Description

What is the purpose of this pull request?

This pull request:

• migrates the JavaScript tests in stats/base/dists/rayleigh/logpdf/test/test.logpdf.js from computed EPS-based tolerances to isAlmostSameValue ULP-based assertions. The ULP count is passed inline as an integer literal. The final values, tightened to the measured minimum that passes over the full fixture set (stable across two runs):
  • small scale parameter fixtures (small_scale.json): 24 ULPs (previously 15*EPS relative tolerance; 23 fails)
  • medium scale parameter fixtures (medium_scale.json): 2 ULPs (1 fails)
  • large scale parameter fixtures (large_scale.json): 2 ULPs (1 fails)
• test.factory.js and test.native.js already use ULP-based assertions and are unchanged.

Related Issues

Does this pull request have any related issues?

This pull request has the following related issues:

• Ref [RFC]: Migrate math/base/special packages from relative tolerance testing to ULP difference testing (tracking issue) #11352

Questions

Any questions for reviewers of this pull request?

No.

Other

Any other information relevant to this pull request? This may include screenshots, references, and/or implementation notes.

No.

Checklist

Please ensure the following tasks are completed before submitting this pull request.

• Read, understood, and followed the contributing guidelines.

AI Assistance

When authoring the changes proposed in this PR, did you use any kind of AI assistance?

• Yes
• No

If you answered "yes" above, how did you use AI assistance?

• Code generation (e.g., when writing an implementation or fixing a bug)
• Test/benchmark generation
• Documentation (including examples)
• Research and understanding

Disclosure

If you answered "yes" to using AI assistance, please provide a short disclosure indicating how you used AI assistance. This helps reviewers determine how much scrutiny to apply when reviewing your contribution. Example disclosures: "This PR was written primarily by Claude Code." or "I consulted ChatGPT to understand the codebase, but the proposed changes were fully authored manually by myself.".

This PR was written primarily by Claude Code (automated routine), including the search for the minimal ULP bounds.

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Generated by Claude Code

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
stats/base/dists/rayleigh/logpdf	$\\color{green}297/297$ $\\color{green}+100.00\\%$	$\\color{green}29/29$ $\\color{green}+100.00\\%$	$\\color{green}4/4$ $\\color{green}+100.00\\%$	$\\color{green}297/297$ $\\color{green}+100.00\\%$

The above coverage report was generated for the changes in this PR.