Mike Spivey

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25,865 reputation
256129
bio website math.pugetsound.edu/~mspivey
location Tacoma, WA
age 40
visits member for 2 years, 7 months
seen May 14 at 19:46
stats profile views 3,184

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.


386 Answers

newest activity votes
4
Wanted: Insight into formula involving binomial coefficients
7
Grad degree that mainly deals with probability/game theory/optimization?
1
Optimality Criterion and the Simplex Method
3
Exponential Generating Functions For Derangements
1
Dividing objects in equal parts
1
Warehouse Location Problem as an integer progam instead of a mixed-integer program
13
How much Math do you REALLY do in your job?
3
Determining quickly whether this Integer Linear Program has any solution at all
5
Arc sums for a circle of $k$ positive integers whose total sum is $n$
10
Expected number of tosses for two coins to achieve the same outcome for five consecutive flips
0
Why is the identity the only symmetric $0$-$1$ matrix with all eigenvalues positive?
2
What is the meaning of the linear programing problem solution's outputs?
4
Proof of $ \text{Var}\,\left(\sum_{i=1}^{n}g(X_i)\right)=n\left(\text{Var}\,g(X_1)\right).$
1
How to understand this combinatorially: $\sum^{2k}_{i=0} \binom{4k}{2i} (-1)^{i}=2^{2k}(-1)^{k}$
1
Expected intersection size of two random sets
5
Evaluate $\sum_{n=1}^{\infty} \frac{(2n)!}{2^{2n}(n!)^2 (2n-1)}$
2
A general formula for the $n$-th derivative of a parametrically defined function
1
Asymptotics for Bell number
6
Compute $\lim_{n\to\infty} \left(\sum_{k=1}^n \frac{H_k}{k}-\frac{1}{2}(\ln n+\gamma)^2\right) $
3
Are these numbers $h_{r,s}$ irrational?
9
Evaluate $\int_0^1\ln(1-x)\ln x\ln(1+x) \mathrm{dx}$
1
How to calculate $\sum \limits_{x=0}^{n} \frac{n!}{(n-x)!\,n^x}\left(1-\frac{x(x-1)}{n(n-1)}\right)$
6
Prove that if $\sigma(n)=2n+1$ then $n$ is an odd perfect square.
1
integer partitions and Faà di Bruno coefficients
2
Who are the most inspiring communicators of math for a general audience?
5
Number of acyclic digraphs on $[n]$ with $k$ edges and each indegree, outdegree $\leq 1$
11
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
2
Steps in the Simplex Method
2
Finding volume of a shape using double integral
11
Probability distribution and their related distributions
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