After centuries, a seemingly simple math problem gets an exact solution
It's fascinating how a problem that looks at first glance like it belongs as a basic homework problem in a calculus textbook turns out to be so difficult.<p>I'm curious if there are lists of other problems that are similarly easy to understand in a few seconds, that seem like they'd be similarly easy to solve, but which turn out to be fiendishly hard like this one?<p>Especially ones that can be visualized easily geometrically like this one.