Produce matrix with loop

Question

Tom 2011-2-26

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2105-produce-matrix-with-loop

Hi! I have a homework problem that I have difficulties with.

The problem is asking me to create a m by n matrix, using a function file, whose elements are going to be the sum of the index of each element. For exemple my first column would be A(1,1)=2 A(2,1)=3 A(3,1)=4 and so on.. I also must use the ''for'' loop. I tried to figure out how am I going to solve this problem before typing anything in my script file, so I thought that I could assign a matrix composed of ones, and of the dimensions of my outpout argument like U=ones(m,n) so my index variable ''k'' in my for loop could give the right value of each one after each pass, but I can't figure out hiow can I do that.. Can you give me a hint ?

Thanks!

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Matt Fig 2011-2-26

3
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2105-produce-matrix-with-loop#answer_3288

在 MATLAB Online 中打开

Most people on here will not just do a whole homework assignment for you. If you don't do any work, you will not learn. I will show you most of the solution, and I bet you can easily fill in the rest. Be sure to study it so you understand.

function A = elems_sum(m,n)
% Put help here.  
for ii = 1:m
    for jj = 1:n
        A(ii,jj) = ??????;
    end
end

2 个评论
显示无隐藏无

Tom 2011-2-26

I'm sorry If I went too fast on the ''ask'' button I didn't know until now how could I use a nested loop. But be assured that I tried to find a way to write my script using my references. But thank you very much for your time. If I understand, the two for statements indicates that for the first pass ii will equal 1, until all the values of jj are passed; so in my function the loop does (1+1),(1+2) etc.. until ii=m, then the loops ends and I have my matrix.. Thanks again..