Combination of sub-matrices generated within a for loop

clear;
clc;
close all;

n=[3 1 2];
rad=[0.04 0.02 0.01];
h=[10 12 15];

for kk=1:length(n)
    matrix=zeros(n(kk),n(kk));
    for ii=1:n(kk)
        for jj=1:n(kk)
            val=rad(kk)*h(kk);
            matrix(ii,jj)=val;
        end
    end
end

% Dear users, if you put a debug at the very last "end" (row 17), you can
% see that I aim to generate 3 sub-matrices having the size of 3x3, 1x1 and
% 2x2 (see n=[3 1 2]). I want to combine each sub-matrix one each other diagonally.
% I want to get the matrix as a result below:

matrix=[0.4 0.4 0.4 0 0 0;0.4 0.4 0.4 0 0 0;0.4 0.4 0.4 0 0 0;0 0 0 0.24 0 0;0 0 0 0 0.15 0.15;0 0 0 0 0.15 0.15];

%Is there any simple way to do it?
%Thanks in advance!

[madhan ravi]

How does this differ from https://in.mathworks.com/matlabcentral/answers/475971-combining-sub-matrices-diagonally-within-a-for-loop ?

[madhan ravi]

Using the previous solution of your question gives the same result, please describe the situation where that condition contradicts your needs.

[Bruno Luong]

"The calculation of Val is different."

You might try to learn deeper how computer programming actually works, if you get stuck everytime the values change then you miss the whole purpose of programming.

Answer 1

[infinity]

Hello,

There are various solutions for this question, one of the closet one to your current code could be

clear;
clc;
close all;
n=[3 1 2];
rad=[0.04 0.02 0.01];
h=[10 12 15];
matrix = zeros(sum(n));
for kk=1:length(n)
%     matrix=zeros(n(kk),n(kk));
    for ii=1:n(kk)
        for jj=1:n(kk)
            val=rad(kk)*h(kk);
            matrix(ii+sum(n(1:kk-1)),jj+sum(n(1:kk-1)))=val;
        end
    end
end