Mathematics
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Robert Israel's user avatar
Robert Israel's user avatar
Robert Israel's user avatar
Robert Israel
  • Member for 12 years
  • Last seen this week
  • math.ubc.ca/~israel
  • Toronto, ON, Canada
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About

I'm an Emeritus Associate Professor of Mathematics at University of British Columbia.

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All Questions Answers
Score Newest
answer
422
Is there another simpler method to solve this elementary school math problem?
Aug 28, 2013
answer
158
Probability that 3 points in a plane form a triangle
Oct 11, 2016
answer
144
Is there a "positive" definition for irrational numbers?
Sep 6, 2016
answer
136
Is being good at mathematic contests necessary to pursue a career in mathematics or physics?
Aug 5, 2016
answer
108
Slice of pizza with no crust
Sep 1, 2013
answer
104
Is the product of symmetric positive semidefinite matrices positive definite?
Feb 27, 2012
answer
91
What are some examples of when Mathematics 'accidentally' discovered something about the world?
Jun 1, 2016
answer
91
The last digit of $2^{2006}$
Jan 23, 2013
answer
88
Help find hard integrals that evaluate to $59$?
Jul 9, 2012
question
84
$\frac{1}{n}$ as a difference of Egyptian fractions with all denominators $<n$
Nov 24, 2016
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Answers composed entirely mechanically, e.g. by computer algebra systems
3
Do mods of stackexchange sites get paid?
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62
Series whose convergence is not known
53
Nonequivalent definitions in Mathematics
43
Distinctness of products of Fibonacci numbers
39
Intuition behind Harmonic Analysis in Analytic Number Theory
34
A remarkable almost-identity

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