Average function of squares

Question

Lewis HC 2023-1-3

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https://ww2.mathworks.cn/matlabcentral/answers/1887522-average-function-of-squares

编辑： Lewis HC 2023-1-20

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!

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John D'Errico 2023-1-3

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 2023-1-3

Ok thank you dear friend

function mm=proms(nn)

nn=(x+1).^2

sum(nn)/n

end

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Answer 1

DGM 2023-1-3

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https://ww2.mathworks.cn/matlabcentral/answers/1887522-average-function-of-squares#answer_1139992

编辑：DGM 2023-1-3

在 MATLAB Online 中打开

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