15

Questions

101
85
votes
42
answers
34k
views

Magic trick based on deep mathematics

may 15 at 21:16 Amir Asghari 185311

51
55
votes
35
answers
8k
views

Theorems with unexpected conclusions [closed]

jan 1 12 at 3:18 Andres Caicedo 14.4k14279

17
39
votes
5
answers
4k
views

Decidability of chess on an infinite board

feb 1 12 at 14:03 Joel David Hamkins 74.9k7187343

7
35
votes
2
answers
1k
views

Combinatorial interpretation of ${i\choose n}$, where $i^2=-1$

dec 15 at 23:41 Eric Naslund 3,8701434

12
25
votes
1
answer
898
views

Density of values of polynomials in two variables

jan 18 at 20:35 Tim Browning 18611

29
18
votes
25
answers
9k
views

Most intricate and most beautiful structures in mathematics

jan 3 12 at 22:40 Andres Caicedo 14.4k14279

1
16
votes
2
answers
665
views

Convex hull of lattice points in a circle

jun 29 at 2:12 Jan Kyncl 4215

3
15
votes
2
answers
404
views

Asymptotic number of certain functions without fixed points

jan 21 12 at 17:28 Noam D. Elkies 18.1k46290

7
13
votes
3
answers
848
views

Fairest way to choose gifts

sep 1 10 at 6:03 Gerry Myerson 15.6k14787

6
12
votes
1
answer
478
views

A polynomial recurrence involving partial derivatives

feb 18 12 at 0:22 Bob Terrell 42816

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