The World’s Most Beautiful Equation : Euler’s Identity Math Online Tom Circle Prof Loh (CMU) is the 2019 USA IMO coach whose team (5 ABC, 1 White) co-won the IMO Championship with China. … View original postShare this:TwitterFacebookMoreLinkedInRedditTumblrPinterestPocketEmailPrintLike this:Like Loading... Related Author: tomcircle Math amateur View all posts by tomcircle