How Archimedes showed that $π$ is approximately equal to 22/7 · HackerPapers discussionshttps://hackerpaper.kaipfister.de/p/2008.07995/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMTHow Archimedes showed that $π$ is approximately equal to 22/7 — mentioned by Someonehttps://news.ycombinator.com/item?id=38049004urn:hackerpapers:mention:2008.07995:38049004Sat, 28 Oct 2023 11:33:55 GMT<p>https://en.wikipedia.org/wiki/Approximations_of_π The method of using inscribed and circumscribed n-gons conceptually is the simplest (1), but converges very slowly. See https://arxiv.org/pdf/2008.07995.pdf. (1) at least to non-mathematicians. Pure mathematicians will want to prove the claims that the circumference of a circle is larger than/smaller than that of its inscribed/circumscribed polygon and that both can get arbitrarily close to it if the number of sides gets large enough.</p><p><a href="https://hackerpaper.kaipfister.de/p/2008.07995/">Paper and discussion history</a>. A mention is not an endorsement.</p>math.HO