TIL that there is no formula for the exact perimeter of an ellipse, but that you could make an arbitrarily close approximation of a formula for the perimeter of a *given* ellipse, and that such a formula would depend on the sum of an infinite series.

TIL that this is technically how we have a formula for the perimeter of a circle, but don't notice the messiness because the circle's "axes" are of equal length and thus a single sum of an infinite series works. We call it "pi" to keep it unmessy.

@cwebber you appear to be somewhat knowledgable on these things </s>, have you got some time to poke holes in my idea to see if it stays afloat or sinks? I'm really interested in if I'm thinking sensibly or failing to see an obvious flaw.

@draft13 All working. I spotted the restart.

Admin

Full-stack Geek. From solder to meeples to CI. Everything is better with LEDs

He/him/they/them.

Joined Sep 2020