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Is there any built-in function to make a matrix having non-zero entries in reverse diagonal only?

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GMD Baloch
GMD Baloch 2019-4-15
编辑： madhan ravi 2019-4-15
I know the command eye(3) generates an identity matrix having ones in its principal diagonal but I want to make a matrix that has ones in its secondary diagonal. I have searched out but the diag() command also places the entries in principal diagonal or in other diagonals moving from left to right however, I want to place the entries from right to left.
a = eye(3)
b = diag(2,3,4)
The outputs of above commands are given as
a =
1 0 0
0 1 0
0 0 1
b =
2 0 0
0 3 0
0 0 4
However I want a matrix like this one
0 0 1
0 1 0
1 0 0

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madhan ravi
madhan ravi 2019-4-15
编辑：madhan ravi 2019-4-15
flip(a)

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