TY - BOOK AU - Strogatz, Steven H. TI - The calculus of friendship : : what a teacher and a student learned about life while corresponding about math SN - 9780691150383 U1 - 510.922 PY - 2011/// CY - Princeton, N.J. : PB - Princeton University Press, KW - Mathematicians KW - Calculus KW - Chaotic behavior in systems KW - Differential equations N1 - Continuity (1974-75) -- ; Pursuit (1976) -- ; Relativity (1977) -- ; Irrationality (1978-79) -- ; Shifts (1980-89) -- ; Proof on a place mat (March 1989) -- ; The monk and the mountain (1989-90) -- ; Randomness (1990-91) -- ; Infinity and limits (1991) -- ; Chaos (1992-95) -- ; Celebration (1996-99) -- ; The path of quickest descent (2000-2003) -- ; Bifurcation (2004) -- ; Hero's formula (2005-present) N2 - 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 ER -