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Mathematics
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Barry Cipra

Author of Misteaks, and how to find them before the teacher does (a calculus supplement).

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  • Member for 5 years, 6 months
  • 3,957 profile views
  • Last seen 6 hours ago

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Top Posts (1,998) All Questions Answers | Votes Newest

131 Why does L'Hopital's rule fail in this case? Mar 23 '16
105 Mental Calculations Aug 11 '15
91 Hanging a picture on the wall using two nails in such a way that removing any nail makes the picture fall down May 8 '14
82 Identification of a quadrilateral as a trapezoid, rectangle, or square May 19 '15
65 Is there a “positive” definition for irrational numbers? Sep 6 '16
62 Prove that for every three non-zero integers, a,b and c, at least one of the three products ab,ac,bc is positive Nov 13 '15
57 Inequality from Chapter 5 of the book *How to Think Like a Mathematician* Feb 26 '15
51 A six-sided die is rolled 5 times. The roller wins if the last roll is the same as one of the previous rolls. Dec 8 '16
46 Examples of mathematical discoveries which were kept as a secret Nov 3 '14
45 “If everyone in front of you is bald, then you're bald.” Does this logically mean that the first person is bald? Feb 23 '16
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