# Mathematical Digest

### Short Summaries of Articles about Mathematics

in the Popular Press

"Math Homework 4,000 Years Ago," by Eric Powell. *Discover,* May 2001.

Eleanor Robson, an expert in Sumerian writing at Oxford University, believes that the Plimpton 322 cryptic tablet is the world's oldest known set of a teacher's class notes. Previous researchers have speculated that the inscribed tablet, dated around 1800 B.C., was a trigonometry table or astronomical calculations.

*--- Annette Emerson *