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matrix clockwise rotation

An old note — I haven't updated it since I wrote it.

1m = [[1, 2, 3],
2   [4, 5, 6],
3   [7, 8, 9]]
4
5[*zip(*reversed(m))]

Output:

1[(7, 4, 1),
2(8, 5, 2),
3(9, 6, 3)]