please help me check the error

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David
David 2020-3-24
评论： David 2020-3-24
Hi, I am just doing some homework after spring break so I forgot some important things about matlab saving sript.
This is my homework: Write a function called odd_rms that returns orms, the square root of the mean of the squares of the first n positive odd integers, where n is a positive integer and the only input argument.
So far, I have tried to do it and I am actually know how to write a code for this:
This is my try :
function orms=odd_rms(n)
A=sqrt(mean((1:2:2n-1).^2));
end
I save my script as odd_rms and try it on command window something like odd_rms(3) but it doesn't show any answer (Error: File: odd_rms.m Line: 2 Column: 19)
I have tried plugging random number to it specific code sqrt(mean((1:2:2n-1).^2)) and they return the right answer.
Can someone explain the error on my script?
Thanks you so much

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采纳的回答

Birdman
Birdman 2020-3-24
编辑：Birdman 2020-3-24
You forgot to put multiplication operator. Try this:
function A=odd_rms(n)
A=sqrt(mean((1:2:2*n-1).^2));
end
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Walter Roberson
Walter Roberson 2020-3-24
You accidentally included some commands before the function declaration, leading you to accidentally have the situation of having a script named odd_rms.m that includes a function named odd_rms . When you have a script, you cannot include a function with the same name as the script.
David
David 2020-3-24
awesome, thanks you. I get it

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更多回答（1 个）

Walter Roberson
Walter Roberson 2020-3-24
Your function has variable orms as output but you only assign to A.

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