Mathematics
Barry Cipra's user avatar
Barry Cipra's user avatar
Barry Cipra's user avatar
Barry Cipra
  • Member for 10 years, 4 months
  • Last seen more than 1 year ago
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Author of Misteaks, and how to find them before the teacher does (a calculus supplement).

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All Questions Answers
Score Newest
answer
164
Why does L'Hopital's rule fail in calculating $\lim_{x \to \infty} \frac{x}{x+\sin(x)}$?
Mar 23, 2016
answer
112
How do people perform mental arithmetic for complicated expressions?
Aug 11, 2015
answer
103
Hanging a picture on the wall using two nails in such a way that removing any nail makes the picture fall down
May 8, 2014
answer
89
Identification of a quadrilateral as a trapezoid, rectangle, or square
May 19, 2015
answer
69
Is there a "positive" definition for irrational numbers?
Sep 6, 2016
answer
64
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, 2015
answer
59
Inequality from Chapter 5 of the book *How to Think Like a Mathematician*
Feb 26, 2015
answer
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, 2016
answer
47
Examples of mathematical discoveries which were kept as a secret
Nov 3, 2014
answer
47
Geometric explanation of $\sqrt 2 + \sqrt 3 \approx \pi$
Sep 12, 2014
Top Meta posts
2
5
17
Derivate vs. Derivative
6
Why does MSE think I "modified" an answer?
5
The "delete" option has disappeared for me in comments
4
Why this type of questions are voted to be closed?
4
How to type =|| = in MathJax?
Top network posts
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34
Gaussian prime spirals
28
Is "Notices of the American Mathematical Society" available before 1995?
26
What are some examples of ingenious, unexpected constructions?
23
History of the high-dimensional volume paradox
21
Sums of Squares

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