Carl Löndahl's user avatar
Carl Löndahl's user avatar
Carl Löndahl's user avatar
Carl Löndahl
  • Member for 8 years, 10 months
  • Last seen more than a month ago
10 votes
2 answers
982 views

Bouncing ball on a billiard board

11 votes
2 answers
440 views

A curious circuit

9 votes
3 answers
414 views

A problem of inequalities

12 votes
1 answer
405 views

Fitting the pieces