2,000-Year-Old Greek Papyri Reveal a Surprising Way Ancient People Solved Math Problems

Ancient Greek papyri show that people used diagrams to solve and understand practical math problems nearly 2,000 years ago. A study led by Thomas Kelly finds that the drawings helped readers organize numbers, follow calculations, and check results. The research examines Greek mathematical papyri from Greco-Roman Egypt, mainly dating from the first four centuries A.D. The texts contain practical geometry problems involving land, buildings, and three-dimensional objects. Unlike formal proofs, these problems usually provide measurements followed by steps for calculating an answer. They offer another view of mathematics in ancient Greece, showing how geometry could be applied to practical calculations....