Reputation
5,998
Top tag
Next privilege 10,000 Rep.
Access moderator tools
Badges
6 22 44
Impact
~274k people reached

17h
comment proof by contradiction puzzle
Isn't this just en.wikipedia.org/wiki/Chomp ?
Jun
29
comment Determine the number of graphs with v vertices
en.wikipedia.org/wiki/Graph_enumeration
Jun
29
answered How many edges in a graph with $n$ vertices are needed to guarantee it is connected?
Jun
10
comment What is the worst-case running time of this algorithm?
@Henry That's a good suggestion. Or "unbounded" even.
Jun
10
asked What is the worst-case running time of this algorithm?
Feb
19
awarded  Great Question
Feb
18
awarded  Popular Question
Feb
18
awarded  Revival
Feb
16
awarded  Yearling
Feb
5
comment Problem about combinations and permutations
The first customer has 14 choices, the next 13, and the last 12. It's 14P3, not 14C3.
Oct
14
comment $\gcd(p, (p-1)!) = 1$?
Wilson's theorem settles this in 1 step: en.wikipedia.org/wiki/Wilson's_theorem
Sep
30
awarded  Explainer
Sep
24
awarded  Autobiographer
Sep
11
awarded  Good Question
Jul
15
revised Finding rational points at rational distance in the plane
deleted 1 character in body
Jul
15
comment Finding rational points at rational distance in the plane
@QiaochuYuan: Take $p$ to be $(1/\pi, \sqrt{1-1/\pi^2})$. Aren't both coordinates transcendental? And isn't $p$ unit distance from the origin?
Jul
15
asked Finding rational points at rational distance in the plane
Jul
2
awarded  Curious
Apr
12
awarded  Popular Question
Feb
16
awarded  Yearling