The Calculus of Friendship: What a Teacher and a Student Learned about Life While Corresponding about Math Visual Growing up an orphan has

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The Calculus of Friendship: What a Teacher and a Student Learned about Life While Corresponding about Math Visual Growing up an orphan hasThe 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