MATLAB: How to can I create a square diagonal matrix and insert variables into it

diagonallc circuitMATLABmatrixprojectsquaresquare matrix

Hello,
I need to create a 500×500 matrix that looks like this
[0 0 0 0 0 x 
 0 0 0 0 x 0
 0 0 0 x 0 0
 0 0 y 0 0 0
 0 y 0 0 0 0
 y 0 0 0 0 0 ]
now i know that i can use eye(0,0) command and use the fliplr() to create an inverse identity matrix. but i just need to know how to add variables into it.....
any ideas?
your help is appreciated
THANK YOU :)

Best Answer

   A=zeros(6)
 [n,m]=size(A);
 idx=sub2ind([n m],1:n,n:-1:1)
 x=5;
 y=10;
 A(idx)=[x x x y y y ]
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