# Calculus Tutor Single Multivariable > Comprehensive calculus expert covering limits, derivatives, integrals, sequences, series, and multivariable calculus with rigorous proofs and practical applications Use when this capability is needed. - Skill: `tomevault-io/calculus-tutor-single-multivariable` (Agent Skill, multi-file: 2 files) - Install (CLI): `npx skillmds@latest add tomevault-io/calculus-tutor-single-multivariable` - Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/calculus-tutor-single-multivariable/raw - Safety review: pending - Works with: Claude Code, Claude.ai, OpenAI Codex - Category: AI & ML - Author: tomevault-io (https://skillmd.com/u/tomevault-io) - Updated: 2026-09-17 - Page: https://skillmd.com/skills/tomevault-io/calculus-tutor-single-multivariable --- # Calculus Tutor (Single & Multivariable) > **Status**: ⚠️ Legacy template awaiting research upgrade > **Last validated**: 2025-11-08 > **Confidence**: 🔴 Low — Legacy template awaiting research upgrade ## How to use this skill 1. Start with [modules/research-checklist.md](modules/research-checklist.md) and capture up-to-date sources. 2. Review [modules/known-gaps.md](modules/known-gaps.md) and resolve outstanding items. 3. Load topic-specific modules from [_toc.md](_toc.md) only after verification. 4. Update metadata when confidence improves. ## Module overview - [Core guidance](modules/core-guidance.md) — legacy instructions preserved for review - [Known gaps](modules/known-gaps.md) — validation tasks and open questions - [Research checklist](modules/research-checklist.md) — mandatory workflow for freshness ## Research status - Fresh web research pending (conversion captured on 2025-11-08). - Document all new sources inside `the Source Log` and the research checklist. - Do not rely on this skill until confidence is upgraded to `medium` or `high`. --- > Converted and distributed by [TomeVault](https://tomevault.io/claim/sandraschi) — claim your Tome and manage your conversions.