Stack Exchange

Douglas S. Stones

Melbourne, Australia

sites.google.com/site/rknmodn

Age: 30

My primary research interest is Latin squares (combinatorics) and problems relating to Latin squares. Please visit my website for more info (e.g. a list of publications).

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Top Questions
37 votes

What is the difference between “likelihood” and “probability”?

probability likelihood-function asked Sep 14 '10 at 3:24
stats.stackexchange.com

20 votes

An example of a real-world map that is not 4-colourable?

combinatorics graph-theory asked Jan 3 '11 at 23:40
math.stackexchange.com

13 votes

Is there an automated way to prove really boring elementary number theoretic results?

elementary-number-theory automated-theorem-proving asked Mar 10 '11 at 3:20
math.stackexchange.com

12 votes

Mathematical concepts named after mathematicians that have become acceptable to spell in lowercase form (e.g. abelian)?

big-list terminology mathematicians asked Sep 13 '10 at 13:07
math.stackexchange.com

11 votes

How to find the \textwidth in two-column mode?

margins two-column asked Jul 27 '10 at 5:13
tex.stackexchange.com

11 votes

Are human fetuses more likely to be male?

human-biology physiology reproduction asked Jan 23 at 10:37
biology.stackexchange.com

10 votes

How does the immune system “learn” from a vaccine?

immunology epidemiology vaccination asked Jan 31 at 4:49
biology.stackexchange.com

9 votes

How do members of cryptic species know who to mate with?

evolution genetics zoology asked Jan 19 at 12:23
biology.stackexchange.com

9 votes

Should I refer to “Section 2.3” or “Subsection 2.3”?

word-choice meaning writing structure asked Aug 13 '10 at 5:24
english.stackexchange.com

8 votes

Error in estimating the size of a set?

estimation asked Sep 28 '10 at 1:03
stats.stackexchange.com

1 2 3 4

Top Answers
44
How can a structure have infinite length and infinite surface area, but have finite volume?
math.stackexchange.com

33
$5^n+n$ is never prime?
math.stackexchange.com

17
$a^{1/2}$ is either an integer or an irrational number
math.stackexchange.com

15
Funny identities
math.stackexchange.com

13
Prime numbers stretch to infinity, but what about the distance between them?
math.stackexchange.com

10
every permutation is either even or odd,but not both
math.stackexchange.com

10
Prove: the intersection of Fibonacci sequence and Mersenne sequence is just $\{1,3\}$
math.stackexchange.com

9
Is zero odd or even?
math.stackexchange.com

9
Should we “Sympathy Commit” to a site proposal?
meta.stackoverflow.com

8
Counterintuitive PDE
math.stackexchange.com

8
How many winning configurations can you have in a nxn Tic-Tac-Toe game where players win if a they get n/2 in either a row or column, consecutively
math.stackexchange.com

8
What is the largest $n$ for which the $n$th prime is known?
math.stackexchange.com

8
Reference Request: Application of Block Designs to Software Testing
cstheory.stackexchange.com

7
What is the remainder when $4^{44}$ is divided by 44?
math.stackexchange.com

7
Numbers of circles around a circle
math.stackexchange.com

7
How do you determine if a number is prime or composite?
math.stackexchange.com

7
bijection = bijection + bijection on symmetric integer intervals
math.stackexchange.com

7
Small cycles in an undirected graph
math.stackexchange.com

6
Solution to $1-f(x) = f(-x)$
math.stackexchange.com

6
There is a 5 by 5 matrix of points on a plane. How many triangles can be formed using points on this matrix?
math.stackexchange.com

6
The highest power of a prime that divides $f(x)$
math.stackexchange.com

6
Construct a Graph with 7 Vertex, 21 Edges on 2D Plane
math.stackexchange.com

6
How do I calculate gambling edge using average win?
math.stackexchange.com

6
How many sides does a circle have?
math.stackexchange.com

5
Is It True that We Can Never Be Sure of Validity of a Mathematical Proof?
math.stackexchange.com

5
Is there a closed-form equation for $n!$? If not, why not?
math.stackexchange.com

5
Online Math Degree Programs
math.stackexchange.com

5
The set $\{g^2 | g \in G\}$ in a group $G$
math.stackexchange.com

5
Give a connected graph whose automorphism group has size 3
math.stackexchange.com

5
Can all mammals swim?
biology.stackexchange.com