MATLAB Answers

I don't know how to call my function

조회 수: 2(최근 30일)
Joshua Vuong
Joshua Vuong 2021년 9월 7일
댓글: Image Analyst 2021년 9월 8일
function norm = myvectornorm(x)
% calculate the norm
s=0;
n=length(x);
for i=1:length(x)
s =s+ x*(i)^2;
end
norm= sqrt(s);
end

답변(1개)

John D'Errico
John D'Errico 2021년 9월 8일
편집: John D'Errico 2021년 9월 8일
What language are you using here? Possibly not MATLAB. :)
s = s + L*(i)^2;
Do you think that squares the number i, and then multiplies the square of that value by the vector L? After all, * tells MATLAB to multiply two things.
Or, did you want to access the i'th element of L, and then square it? But L is itself only the length of the vector x, so just the number of elements in x.
Or, do you relly want to access the i'th element of the vector x, square THAT, and then sum the result into s?
The code you wrote will not achieve the latter. For that to happen, you would need to write this:
s = s + x(i)^2;
  댓글 수: 4
Image Analyst
Image Analyst 2021년 9월 8일
Call it like this
x = [1,1,1]; % Whatever values you want.
norm = myvectornorm(x)

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