December 29th, 2018, 09:20 PM  #1 
Newbie Joined: Dec 2018 From: Euclidean Plane Posts: 7 Thanks: 3  Hello all!
Hi all, I'm a new member here! I'm a PhD student specializing in number theory. Favorite identity: $$\frac{1}{\pi^2+1} + \frac{1}{4\pi^2+1} + \frac{1}{9\pi^2+1} + \frac{1}{16\pi^2+1} + \;\ldots\; = \frac{1}{e^21}.$$ Favorite number is the Freiman constant $$F = \frac{2\,221\,564\,096 + 283\,748\sqrt{462}}{491\, 993\, 569} = 4.5278295661\dots$$ because it's a very naturally defined constant despite those crazy large numbers. 
December 30th, 2018, 03:52 PM  #2 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,597 Thanks: 1038 
Joined: Dec 2018 From: Euclidean Plane Did Euclid also invent the plane? 
December 30th, 2018, 04:05 PM  #3 
Senior Member Joined: Feb 2016 From: Australia Posts: 1,826 Thanks: 646 Math Focus: Yet to find out. 
Welcome and good luck!

January 4th, 2019, 05:02 PM  #4 
Senior Member Joined: Oct 2016 From: Arizona Posts: 207 Thanks: 37 Math Focus: I'm still deciding, but my recent focus has been olympiad problems and math journal problems. 
Welcome!
