Gérard Defives2026-03-222026-03-221987https://andeanlibrary.org/handle/123456789/63951Napoleon's Problem is this one: how to obtain, with a compass alone, his center (or his radius). Two solutions are purposed here. First, a classic one, with a purely logical demonstration, rarely met. A calculus proof is also given of the same constructions. The second purposed construction is a graphic illustration of the concept of limit.esCalculus (dental)Center (category theory)MathematicsLimit (mathematics)CombinatoricsPhilosophyComputer sciencearticle