ag4gt Posted April 26, 2005 Share Posted April 26, 2005 Can anyone give me the general formula for the number of can in a pyramidal stack? Say you have a stack of soup cans. The first row (the one on the bottom) of cans has N cans in it. The next row has N-1. This continues until you reach N rows which has 1 can in it. Thanks Link to comment Share on other sites More sharing options...
Dave Posted April 27, 2005 Share Posted April 27, 2005 It's the equation for the triangle numbers, and is given by: [math]T_n = \frac{n(n+1)}{2}[/math]. Link to comment Share on other sites More sharing options...
ag4gt Posted April 27, 2005 Author Share Posted April 27, 2005 Thank you very much! That is just what I needed. Link to comment Share on other sites More sharing options...
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