serie with two parameters

Hi everyone,

I would like to realize the graphic of this function for my thesis.

I find very difficult to write this on matlab because I don't know how to realize double series.

Maybe for you this is really easy. I have also searched on internet without results.

Answer 1

[Mischa Kim]

Sara, it really depends on what you are trying to achieve. For starters you could use two for loops to take care of the summations:

for n = 1:N
    for m = 1:M
        %your code
    end
end