younotesunreadstarredadd url

How does atan(1) * 4 equal PI? - Mathematics Stack Exchange

https://math.stackexchange.com/questions/1211722/how-does-atan1-4-equal-pi

january 20183d dev mathopen in karakeep

by GFauxPas ‧ Mathematics Stack Exchange ‧ saved copy from 2026.03.02

Karakeep has no AI summary for this page yet. summarize now

page description:

I needed the PI constant in C++, and I was lead to the answer that: const PI = atan(1) * 4 Note that despite involving code, I’m asking this from a mathematics perspective. I have 2 questions about
screenshot of the page

« back to bookmarks