Robert and Ellen Kaplan

Robert Kaplan has taught mathematics to people from four to eighty, most recently at Harvard. In 1994, with his wife Ellen, he founded The Math Circle, a program, open to the public, for the enjoyment of pure mathematics. It is spreading across the country and abroad (the Kaplans have this year opened a thousand Math Circles in Brazil). He has written books about the Pythagorean Theorem, the infinite, and nothing. He has also taught Philosophy, Greek, German, Sanskrit and Inspired Guessing, and is the American correspondent for All Out Cricket.

After the performance, Robert Kaplan will speak a bit about a major theme in A Disappearing Number  – Infinity – and then engage in conversation with our audience about the play.

Dr. Kaplan’s website is