early preview
diffeq-tutor
Interactive study tools for ordinary differential equations — worked problems with step-by-step reveal, quiz mode, and progress tracking.
Current scope: one topic module (series solutions near ordinary points + Cauchy–Euler equations) and one cheat sheet, built on a shared TutorCore engine. Roadmap: expand into a full course tutor. See the repository for details.
Series Solutions & Euler Equations — Interactive Tutor
12 fully worked problems: series ansatz and re-indexing, recurrence relations, radius of convergence, Wronskian verification, singular-point classification, and all three Euler-equation root cases. Every step carries a "why" annotation, and each problem has a step-gated walkthrough player.
Series & Euler — Quick Reference
Companion reference sheet: formulas, decision tables, and condensed worked examples for the same topics. Searchable, with a print-friendly mode.
Higher-Order & Series Methods Cheat Sheet
Print-compact cheat sheet spanning undetermined coefficients, spring/mass systems, the power-series toolbox, the 6-step series method, and Euler cases — plus a common-confusions section.