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Author’s interactive solid-geometry lesson showing a 3D construction, exact answer, and highlighted solution step.

Free

Web & UI

Interactive Analytic Geometry Lessons

Solve a conic-section problem into an interactive lesson with exact calculations, a parameter slider, a 2D construction board, and step-by-step formulas.

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Repository last pushed Oct 23, 2026

A small library, made with care. More skills are on the way.