Average function of squares

Greetings everyone, I'm trying to create a function called proms that returns mm, which is the average of the squares of the first nn positive integers, where nn is a positive integer and is the only input argument. For example sum(). My code is this:

Thank you dear friends!

[John D'Errico]

Don't post a picture of your code. Paste in the code itself. It is just text! Then someone else can paste that code into MATLAB to help you. While this is not a lot of code, it still slows down someone who might help you. Do you really want to make it even slightly more difficult to get help?

[Lewis HC]

Ok thank you dear friend

function mm=proms(nn)

nn=(x+1).^2

sum(nn)/n

end

Answer 1

[DGM]

Here's one basic way:

proms(5)

ans = 11

proms(11)

ans = 46

function mm = proms(nn)
% MM = PROMS(NN)
% calculate the mean square of the positive integers
% less than and equal to NN
    mm = mean((1:nn).^2);
end

... or for further simplification, see this thread:

https://www.mathworks.com/matlabcentral/answers/231082-mean-of-squares-of-first-nn-positive-integers

[Lewis HC]

Thank you dear friend!