Triangular Numbers (Part II)
Mar 15, 2010 3604 views 
Using Gauss Idea to find the sum 1+2 + ... +n. Arithmetic progressions an obtaining a general formula for the sum of an arithmetic progression.
Mar 15, 2010 3604 views 
Mar 15, 2010 3604 views Except where otherwise noted, content on this site is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International license.