progscrape: cut-the-knot.org

Pi in Pascal's Triangle (2014)

5 days ago cut-the-knot.org

12 Coins in Verse: Genius solution of twelve balls and a scale problem

10 months ago cut-the-knot.org

A seventh-grader student found a beautiful proof to Thales' Theorem (2002)

12 months ago cut-the-knot.org

Math Lingo vs. Plain English: Double Entendre (1997)

6 years ago cut-the-knot.org math

Pythagorean Theorem and its many proofs

9 years ago cut-the-knot.org

Perrin Sequence

10 years ago cut-the-knot.org