MATLAB: Problem of matrix operations

matrix manipulation

i have a n*n matrix. i want to obtain (row number-column number) matrix.for a 4*4 matrix result should be
[0 -1 -2 -3;
   1 0 -1 -2;
   2 1 0 -1;
   3 2 1 0];
i want to do this for any (n*n) matrix.is there any method to do this.

Best Answer

You can do
rownumber = 4
colnumber = 4
bsxfun(@minus,(1:rownumber)',1:colnumber)
Or considering the special form of this matrix, you can just do
toeplitz((0:rownumber-1)',0:-1:-colnumber+1)
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