MJD

Philadelphia, USA

blog.plover.com

I am Mark Dominus, an amateur.

I have a blog that often carries articles about mathematics.

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Why does mathematical convention deal so ineptly with multisets?

notation terminology math-history multisets asked May 31 '12 at 21:20

math.stackexchange.com

37 votes

Why are the solutions of polynomial equations so unconstrained over the quaternions?

polynomials roots quaternions abstract-algebra asked Mar 21 '12 at 14:42

math.stackexchange.com

32 votes

Is the notorious $n^2 + n + 41$ prime generator the last of its type?

number-theory asked Jan 28 at 23:08

math.stackexchange.com

25 votes

Dividing a square into equal-area rectangles

combinatorics geometry recreational-mathematics discrete-geometry tiling asked Apr 12 '12 at 5:12

math.stackexchange.com

20 votes

A strangely connected subset of $\Bbb R^2$

geometry metric-spaces asked Jul 17 '12 at 1:41

math.stackexchange.com

18 votes

Manual proof that ${\left(\pi^\pi\right)}^{\pi^\pi}$ is a noninteger

numerical-methods arithmetic asked May 13 at 19:47

math.stackexchange.com

17 votes

Why does the Hilbert curve fill the whole square?

real-analysis reference-request examples-counterexamples fractals asked May 6 '12 at 22:19

math.stackexchange.com

17 votes

Multiplication tables with all entries distinct

reference-request elementary-number-theory arithmetic asked Jul 24 '12 at 13:36

math.stackexchange.com

17 votes

Finding interesting anagrams

algorithms strings search-algorithms natural-lang-processing asked Jun 7 '12 at 18:31

cs.stackexchange.com

16 votes

How do you pronounce the inverse of the $\in$ relation? How do you say $G\ni x$?

elementary-set-theory terminology pronunciation asked Aug 18 '12 at 17:41

math.stackexchange.com

Top Answers

What was the first bit of mathematics that made you realize that math is beautiful? (For children's book)

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In the history of mathematics, has there ever been a mistake?

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Must a monotone function have a monotone derivative?

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Solve $\cos^2x-\sin^2x= 1$

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Why is $\sqrt{8}/2$ equal to $\sqrt{2}$?

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Can you construct a field with 6 elements?

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Why does the logarithm require a special notation?

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Probability of random integer's digits summing to 12

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Nice examples of groups which are not obviously groups

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bijective map from $\mathbb{R}^3\rightarrow \mathbb{R}$

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Why not to extend the set of natural numbers to make it closed under division by zero?

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Research done by high-school students

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“A proof that algebraic topology can never have a non self-contradictory set of abelian groups” - Dr. Sheldon Cooper

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Importance of Axiom of Choice

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Does $x/yz$ mean $x/(yz)$ or $(x/y)z$?

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What would base $1$ be?

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Linear Regression?

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Solving SAT by converting to disjunctive normal form

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Big List of Fun Math Books

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Is there no solution to the “hardest” puzzle?

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Mathematics, Philosophy and writing.

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How does one give a mathematical talk?

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“Include $\mathbb{R}^n$ into $\mathbb{S}^n$”

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Finite Sum of Power?

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Finding the divisors of a number

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Past coin tosses affect the latest one if you know about them?

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Fireworks under inverse-cube gravity

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Does ((2^2)^2)^2… = 1 or 0?

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What is the point of countable vs. uncountable sets?

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About the Continuum Hypothesis

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