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вернуться в форумHelp to understand!! Послано Desire 2 ноя 2013 03:05 I know i am stupid but help me to understand this formula! n*(n+1)/2*(n+2) Edited by author 02.11.2013 03:06 Edited by author 02.11.2013 03:12 Re: Help to understand!! This formula is equivalent to the this sum: sum(i=0 -> N) sum(j=i -> N) (i + j) Edited by author 27.11.2015 01:21 |
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