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Summing values in a loop

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James Crowe
James Crowe 2017-10-27
评论： James Crowe 2017-10-27
Hi, how would I add values in a loop after iteration. eg. say values that came out were 1,2,3,4,5. I would want an array of 1,3,6,10,15. So 3rd number is first 3 added together and 5th is the first 5 etc. Thank you.
iiTerm = zeros(10,1)
for ii = 1:10
iiTerm(ii) = (((-1).^(ii-1)).*(((pi/4).^(2.*(ii-1))))./(factorial(2.*(ii-1))));
end

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Torsten
Torsten 2017-10-27
You mean
for ii = 1:10
iiTerm(ii) = (((-1).^(ii-1)).*(((pi/4).^(2.*(ii-1))))./(factorial(2.*(ii-1))));
end
iiSum = cumsum(iiTerm);
?
Best wishes
Torsten.

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