Simple problem yet I cannot find the error

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Matt 2015-10-13

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https://ww2.mathworks.cn/matlabcentral/answers/248316-simple-problem-yet-i-cannot-find-the-error

编辑： David Young 2015-10-13

Here is my script:

haut=0.5
larg=0.5
long=2
A=linspace(1, larg*100, larg*100)'; % y
B=linspace(1, long*100, long*100)'; % x
C=linspace(1, haut*100, haut*100); % z
D=zeros(length(B),length(A));
for i=1:length(B)
    for j=1:length(A)
        D(i, j)=[B(i), A(j)]
    end
end

But this doesn't work. Any suggestion?

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David Young 2015-10-13

编辑：David Young 2015-10-13

You can't store a 2-element vector (in this case [B(i), A(j)]) in an element of a numeric array. The value assigned to D(i,j) must be a scalar.

You need to explain what you want to do - what should D contain at the end of the loop?

It's possible that you need to look at cell arrays, which can contain vectors, but it might be better in various ways to stick with numeric arrays if the problem structure is suitable.

It's also possible that meshgrid and ndgrid could help here - that's just a guess on my part though.

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