We will be begin practice sessions for the Putnam exam this coming week. The Putnam is a nationwide mathematics competition open to all undergraduates, held the first Saturday in December. First prize is a graduate fellowship to Harvard! But the questions are very challenging -- and very cool. Here is a sample: "Show that there is no equilateral triangle in the plane whose vertices all have integer coordinates." We will have practice sessions for the Putnam exam every Tuesday this semester, 5:30 - 7pm in RLM 9.166, starting Tuesday Sept 28. Pizza, the dinner of champions, will be served. For more information or to register for the competition, please see Dave Rusin, RLM 9.140