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Hello people,
Does anyone know how to build a matrix like this one?
Thank you!

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Ameer Hamza
Ameer Hamza 2020-10-22
编辑：Ameer Hamza 2020-10-22

0 个投票

Are you trying to create an upper tiangular matrix? Read about triu: https://www.mathworks.com/help/matlab/ref/triu.html

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Ricardo López
Ricardo López 2020-10-22
That was useful, but I want to index it as shown in the picture. Any idea how?
Ameer Hamza
Ameer Hamza 2020-10-22
Are you trying to create something like this
H_alpha = [1 2 3 4];
M = zeros(numel(H_alpha));
for i = 1:numel(H_alpha)
M = M + diag(H_alpha(i)*ones(numel(H_alpha)-i+1, 1), 1-i);
end
Ricardo López
Ricardo López 2020-10-22
Yeeees! Many thanks
Ameer Hamza
Ameer Hamza 2020-10-22
I am glad to be of help! :)

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