summation of numbers

 Accepted Answer

Walter Roberson
Walter Roberson on 7 Jan 2012

1 vote

Generally speaking, summation can be done through three standard methods:
  • initializing the result to 0, and looping over all of the possibilities, adding each term to the result
  • using sum()
  • using symsum() if you have access to the symbolic toolbox. This should be used only for formula and not for specific numeric values.

4 Comments

FIR
FIR on 7 Jan 2012
walter can u plz code for me using first method of urs,plz am struck here nearly 15 days
The formula for qir did not come out in what I was able to read.
If qir was a matrix q(i,r) then I would code as
yt = M * ceil(sum(q(:).^2) ./ (Miplus * Mplusr) - 1) ./ log(n);
FIR
FIR on 7 Jan 2012
qir is the
number of samples with class i (i = 1,2,. . . ,S, and r = 1,2,. . . ,n)
So that would appear to be external information representable as an array. In that case the above code should work.

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