!rant

Anybody here heard of Project Euler? It's a series of maths/programming puzzles, and I think it's great fun trying to solve them. 😁

The moment when you solve a project euler problem in 5 minutes on the first try...😃💪

The ultimate distraction:

Programming challenges

`WeChall`,
`Project Euler`,
`The Python programming challenge`,
Etc.

Starting my #100DaysOfCode challenge.
Anyone wish to join?
Will be solving problems from Project Euler.

Get a girlfriend
Finish the first 200 project Euler exercises
Write some really cool shit
Get promoted

A friend of mine studies mathematics and he told me about a project he has to do and we worked on it together a bit: Numerically calculate the arctan.
He dug out a nice series by (the one and only) Euler and we started massaging the thing to get it into a bit of a nicer form (there were (n!)^2 and other shenanigans) and we eventually succeeded after some stupid simple errors and arrived at a quite simple recursive progression. After that he also found a formula to transform a given value into the region where our formula actually mimics the arctan and we proceeded to proof this formula. The programming was straight forward and now we only have to find the radius of convergence which I suspect is pi^2 (but no proof).
I had a lot of fun doing this, fiddling around with the formulas and then programming it to see it actually becoming real.

Can someone please explain what a "Euler" in c# is. doing some researching for my project