# Show HN: Penmentor – Claude marks up your handwritten math like a teacher

- Source: Hacker News
- Published: 2026-10-20T15:10:54+00:00
- Category: Tech
- Original: https://github.com/AbdullahAlhariri/penmentor
- Canonical: https://groundlevelnews.com/story/show-hn-penmentor-claude-marks-up-your-handwritten-math-like-a-teacher-967a44/

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