Hi, I need to create a 100*100 matrix with 3 conditions : elements on the diagonal are 0 elements below the diagonal contain the column number elements above the diagonal contain the column number with minus sign it may look simple but I am really new here so I hope someone could help me out :) thanks in advance

Matrix whose elements are the colums numbers

2021 3 12

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Hi,

I need to create a 100*100 matrix with 3 conditions :

it may look simple but I am really new here so I hope someone could help me out :)

thanks in advance

David Hill 2021-3-12

0 个投票

n=100;
[a,b]=ind2sub([n,n],1:n^2);
b(b==a)=0;
b(b>a)=-b(b>a);
c=reshape(b,[n,n]);

Noa Prasquier 2021-3-12

thank you so much !

David Hill 2021-3-12

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