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Alex Robinson
  • Member for 5 years, 9 months
  • Last seen more than a month ago
  • England, United Kingdom
20 votes
1 answer
3k views

Maths symbol that looks like Sputnik

14 votes
1 answer
683 views

Solving a high school conjecture

3 votes
1 answer
3k views

Most elegant way to prove a prime is a prime?

2 votes
1 answer
257 views

Generalising airline overbooking fines

1 vote
1 answer
669 views

How many squares are there?

1 vote
2 answers
158 views

How long is a piece of string

0 votes
0 answers
339 views

Finding an average for a section of an exponential function

-1 votes
1 answer
194 views

Why does this problem only have one solution?