I can't plot during my loop! Help!

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Bikram Singh
Bikram Singh 2016-3-2
评论： Walter Roberson 2016-3-2
if true
disp('Question 3')
nMAX = input('Enter nMAX');
sumX=0;
i=1;
while i<=nMAX
plot(i,sumX); hold on
sumX = sumX + 1/i^2;
i=i+1;
end
disp('The sum of the series is');
disp(sumX);
disp('END Question 3');
end
The above is my code, when I try to plot, nothing appears. Im new to matlab so go easy lol. I would like to put sumx against i for 1:50. Thanks.

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回答（1 个）

Konstantinos Sofos
Hi you could use
plot(i,sumX,'k*'); % set black asterisk
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Bikram Singh
Bikram Singh 2016-3-2
So, how would I adjust the code to make this happen? Sorry, very new to Matlab.
Walter Roberson
Walter Roberson 2016-3-2
That is the adjusted code that Konstantinos posted.

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