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 Author Comment/Response Yee H. 08/12/03 00:45am I apologize if this is too obvious of a question to ask, but I have spent many hours with the online Mathematica Book trying to figure out the proper way to implement this structure in Mathematica. For example's sake, I have a list of 10 calculated values, n. I want to make a new list s, where s[[1]] = n[[1]], s[[2]] = n[[1]] + n[[2]],..., s[[10]] = n[[1]] + n[[2]] + ... + n[[10]]. One way to think of it: n={1,2,3,4,5,6,7,8,9,10}; s={null}; For i = 1 to 10; x = 0; For j = 1 to i; x = x + n[[j]]; Next j; s={s, x}; Next i; Flatten{s}; So that list s contains the desired sequence of 10 sums from list n. I thought I had made up an easy example for myself, to learn about using Mathematica (draw a series of values, calculate their cumulative sums, convert to cumulative frequencies, and plot), but so far it's been very frustrating. There isn't a library or bookstore near me with a Schaum's outline or other guiding resource, and my school is not in session for me to ask an instructor. I will be grateful for your recommendations. The Mathematica Do, While, For structures are confusing to me. Yee URL: (none),

 Subject (listing for 'nested loops') Author Date Posted nested loops Yee H. 08/12/03 00:45am Re: nested loops VL 08/13/03 10:51pm Re: nested loops Henry Lamb 08/15/03 03:54am
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