John Stillwell

John Stillwell

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    right triangle Why prove it? Years ago, a student in an introductory math class asked me: 鈥淲hy do you聽prove everything; why don鈥檛 you just tell us?鈥 Ever since, I have pondered that聽question. Read More
    white circle adjacent to a curve Pi Day As every mathematician knows, 3.14 is only a rough approximation to 蟺, one that fails to reveal its most fascinating properties, of being irrational and in fact transcendental. Read More