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Digests
Steven Stadnicki
Seattle, WA
Software engineer and long-time dabbler in mathematics; 11th in the Putnams forever ago but I've long since atrophied.
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Top Questions
57
votes
What's the value of this Viète-style product involving the golden ratio?
number-theory
sequences-and-series
asked Oct 6, 2010 at 22:47
math.stackexchange.com
55
votes
A maze puzzle for the day
mazes
asked Apr 1, 2015 at 22:26
puzzling.stackexchange.com
51
votes
Self-referential Sudoku
sudoku
arithmetic
asked Apr 15, 2015 at 22:45
puzzling.stackexchange.com
33
votes
How asymptotically bad is naive shuffling?
algorithms
algorithm-analysis
asymptotics
probability-theory
randomness
asked Nov 6, 2012 at 19:22
cs.stackexchange.com
29
votes
Is regex golf NP-Complete?
complexity-theory
np-complete
regular-expressions
asked Jan 13, 2014 at 9:26
cs.stackexchange.com
28
votes
How to create mazes on the hyperbolic plane?
graph-theory
recreational-mathematics
hyperbolic-geometry
percolation
asked Nov 16, 2011 at 0:02
math.stackexchange.com
25
votes
Do side-rational triangles of the same area admit side-rational dissections?
geometry
polygons
dissection
asked Mar 19, 2015 at 15:55
math.stackexchange.com
22
votes
Is the Collatz conjecture in $\Sigma_1 / \Pi_1$?
logic
recreational-mathematics
computability
asked Jan 18, 2012 at 18:44
math.stackexchange.com
22
votes
Where to go after _To Mock A Mockingbird_?
reference-request
combinatory-logic
asked Jul 19, 2013 at 17:58
math.stackexchange.com
22
votes
Suit Yourself (paper puzzle)
word
asked Mar 2, 2020 at 22:56
puzzling.stackexchange.com
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Top Answers
128
Does the square or the circle have the greater perimeter? A surprisingly hard problem for high schoolers
math.stackexchange.com
118
In the history of mathematics, has there ever been a mistake?
math.stackexchange.com
106
Can a piece of A4 paper be folded so that it's thick enough to reach the moon?
math.stackexchange.com
93
The Mathematics of Tetris
math.stackexchange.com
74
if there are 5 points on a sphere then 4 of them belong to a half-sphere.
math.stackexchange.com
63
Does newer card text on a Magic: The Gathering card override the old wording?
boardgames.stackexchange.com
60
In calculus, which questions can the naive ask that the learned cannot answer?
math.stackexchange.com
58
Why can ALL quadratic equations be solved by the quadratic formula?
math.stackexchange.com
56
Origin of the dot and cross product?
math.stackexchange.com
55
A (probably trivial) induction problem: $\sum_2^nk^{-2}\lt1$
math.stackexchange.com
48
Koch snowflake paradox: finite area, but infinite perimeter
math.stackexchange.com
43
Are there 300,000 items in the average American household, and 10,000 items in the average European household?
skeptics.stackexchange.com
43
Multiple-choice question about the probability of a random answer to itself being correct
math.stackexchange.com
41
Collecting alternative proofs for the oddity of Catalan
mathoverflow.net
38
What is this pattern called?
math.stackexchange.com
38
How many digits does the integer zero have?
math.stackexchange.com
38
Which is bigger: $9^{9^{9^{9^{9^{9^{9^{9^{9^{9}}}}}}}}}$ or $9!!!!!!!!!$?
math.stackexchange.com
35
Can Mickey Mouse divide by $7$?
math.stackexchange.com
35
How can I write the numbers 5 and 7 as some sequence of operations on three 9s?
math.stackexchange.com
35
Proofs without words
mathoverflow.net
33
Questions on a self-made theorem about polynomials
math.stackexchange.com
33
Proof that $\sin10^\circ$ is irrational
math.stackexchange.com
32
Why can't polynomials have negative exponents or division by a variable
math.stackexchange.com
30
How to force prime numbers into a line?
math.stackexchange.com
29
Is this of any real importance to the mathematical scientific community?
math.stackexchange.com
29
Hole inside cube with tetrahedrons at corners?
math.stackexchange.com
29
If $a^3 b = ba^3$ and if $ a $ has order 7, show that $ab = ba$
math.stackexchange.com
29
Is it true to say that "it's not logically possible to prove something can't be done"?
math.stackexchange.com
28
Why does the Fibonacci Series start with 0, 1?
math.stackexchange.com
28
Why is Bazaar of Baghdad supposedly such a good card?
boardgames.stackexchange.com
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