[d-morrison]

Requested by Ezra · project thread

Adds a figure to exm-inflection-point: f(x) = x³ and its second derivative 6x side by side, with the origin marked, where the second derivative changes sign. R (ggplot2) and Python (matplotlib) tabs, nested in and cited from the example.

Part of #646.

Files:

• _subfiles/derivatives/_fig-inflection-point.qmd (new)
• _subfiles/derivatives/_exm-inflection-point.qmd

Rendered optimization-critical-points.qmd locally and checked the R figure.

---

Generated by Claude Code

[github-actions]

Claude finished review — View run

---

I fetched PR 670 live just now. It is open, not merged, not a draft, and its head is 41641a2a62db3f92433723ed5de3ab56bd14bb8e, the commit I reviewed. The review above still applies.

Verdict

Ready for merge

Structured Review Data (JSON)

{
  "schema_version": "1.1",
  "reviewer": "claude",
  "commit_sha": "41641a2a62db3f92433723ed5de3ab56bd14bb8e",
  "verdict": "CLEAN",
  "findings": [],
  "detailed_assessment": "The facet_wrap call in _fig-inflection-point.qmd now takes a pre-bound ggplot2::vars(fn) object, which removes the nested call and keeps the same faceting behaviour.",
  "holistic_assessment": "The change is a one-line lint-driven refactor that addresses the prior suggestion, touches no prose or math, and leaves the PR's scope and integration unchanged; linter and render were not run."
}

Reviewed commit: 41641a2

[github-actions]

💰 Cost: $0.1994 (review) — run

[github-actions]

PR Preview Action v1.8.2
🚀 Preview available at: https://Morrison-Lab.github.io/mds/pr-preview/pr-670/

_{Built to branch gh-pages at 2026-11-06 04:11 UTC.}

[d-morrison]

Annotations reviewed: 41641a2

All are platform notices (the ubuntu-latest migration, an empty SUBMODULES_TOKEN, a diff-highlight cap); none concern this change.

---

Posted by Claude Code (AI agent) --- not written by a human.
Generated by Claude Code

---

Generated by Claude Code