MATLAB: Calculate summation using loop

summations

I'm having trouble trying to put this summation: top of ∑ is N bottom of ∑ is j=1 side of ∑ is j^p For p=1,2,3 and N=6 how do i solve this using matlab? Could i have p=1,2,3 all under one script?
    clc
    j=1;
    p=1;
    sum=0;
    disp('j      p      j^p')
    disp('-----------------')
    while (j<=6)
        square=j.^p;
        sum=sum+square;
        fprintf('%d      %d      %d\n', j,p,square);
        j=j+1;

Best Answer

To make it easier for yourself, the first thing you should do is create a function for the summation. It takes two variables (N and p) and returns the result of the summation, like so:
function s = powersum(N, p)
  sum = 0;
  for j = 1:N
    %I'll leave you to fill this in, you've already done that in your script
  end
end
You can then use that function in your script for whichever value of N and p you wish:
N = 6;
for p = 1:3
  s = powersum(N, p);
  %do whatever you want with the result
end
Note that powersum can be implemented more efficiently without a loop but as it looks like you are a beginner in matlab, I'll leave it at that.
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