Help me to make a function of while loop

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derrick li 2019-6-14

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https://ww2.mathworks.cn/matlabcentral/answers/467027-help-me-to-make-a-function-of-while-loop

评论： derrick li 2019-6-15

采纳的回答： Raj

在 MATLAB Online 中打开

How to use while loop to numerically sum the infinite series given as

(1/1^4)-(1/2^4)+(1/3^4)-(1/4^4)+(...)

and the program should stop when the last term becomes smaller than 0.0001

please somebody help me, I'm desperate to make this project all of my friends doesn't know how to solve this problem and i have no one to ask for..

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per isakson 2019-6-14

Homework? Done anything so far?

derrick li 2019-6-15

Yeah, ur right this is my homework, the problem is I litteraly doesnt know where to start, so im looking for someone that atleast give me an example that can help me solve the problem, I know I was wrong but i have no choice

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采纳的回答

Raj 2019-6-14

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https://ww2.mathworks.cn/matlabcentral/answers/467027-help-me-to-make-a-function-of-while-loop#answer_379132

在 MATLAB Online 中打开

ii=1;
A(1,1)=1/(1^4);
while abs(A(ii,1))>=0.0001
    A(ii+1,1)=((-1)^(ii))*(1/((ii+1)^4));
    ii=ii+1;
end
RequiredSum=sum(A)

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Raj 2019-6-14

Maybe I should have given hints instead of posting full answer. Sorry about that.

derrick li 2019-6-15

Im sorry to post something like this, but i have no other choice.

btw thank you very much, without your help i wont be able to finish my homework. actually im not exactly copy the code that you make i've modified it a little bit..

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