Front cover image for The calculus of friendship : what a teacher and a student learned about life while corresponding about math

The calculus of friendship : what a teacher and a student learned about life while corresponding about math

The Calculus of Friendship is the story of an extraordinary connection between a teacher and a student, as chronicled through more than thirty years of letters between them. What makes their relationship unique is that it is based almost entirely on a shared love of calculus. For them, calculus is more than a branch of mathematics; it is a game they love playing together, a constant when all else is in flux. The teacher goes from the prime of his career to retirement, competes in whitewater kayaking at the international level, and loses a son. The student matures from high school math whiz to

Print Book, English, ©2009
Princeton University Press, Princeton, N.J., ©2009