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Mathematics
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Mike Spivey

I am a math professor at the University of Puget Sound. My background is in operations research, and I teach typical OR courses such as optimization, modeling, and probability, as well as calculus, statistics, and differential equations.

My math blog, A Narrow Margin, includes (among other things) discussion of some of my favorite posts - of mine and of others - from math.SE.

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27 questions
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Top Posts (422) All Questions Answers | Votes Newest

153 Why is $1^{\infty}$ considered to be an indeterminate form Nov 15 '10
127 Can I use my powers for good? Oct 12 '11
106 Proving an alternating Euler sum: $\sum_{k=1}^{\infty} \frac{(-1)^{k+1} H_k}{k} = \frac{1}{2} \zeta(2) - \frac{1}{2} \log^2 2$ Jan 11 '13
100 Nice proofs of $\zeta(4) = \frac{\pi^4}{90}$? Mar 21 '11
86 Ways to evaluate $\int \sec \theta \, \mathrm d \theta$ Oct 13 '10
83 Probability density function vs. probability mass function Feb 23 '11
78 Anecdotes about famous mathematicians or physicists Mar 24 '11
76 Sample Standard Deviation vs. Population Standard Deviation Dec 21 '10
68 Combinatorial proof that $\sum \limits_{k=0}^n \binom{2k}{k} \binom{2n-2k}{n-k} (-1)^k = 2^n \binom{n}{n/2}$ when $n$ is even Nov 9 '11
66 Intuition behind using complementary CDF to compute expectation for nonnegative random variables Sep 13 '11
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