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# numpy.rot90

`numpy.``rot90`(m, k=1, axes=(0, 1))

  Rotate an array by 90 degrees in the plane specified by axes.

  Rotation direction is from the first towards the second axis.

  New in version 1.12.0.

  Parameters: | m : array_like Array of two or more dimensions. k : integer Number of times the array is rotated by 90 degrees. axes: (2,) array_like The array is rotated in the plane defined by the axes. Axes must be different.
  Returns: | y : ndarray A rotated view of m.

  See also

  `flip`
    Reverse the order of elements in an array along the given axis.
  `fliplr`
    Flip an array horizontally.
  `flipud`
    Flip an array vertically.

  Notes

  rot90(m, k=1, axes=(1,0)) is the reverse of rot90(m, k=1, axes=(0,1)) rot90(m, k=1, axes=(1,0)) is equivalent to rot90(m, k=-1, axes=(0,1))

  Examples

      >>> m = np.array([[1,2],[3,4]], int)
      >>> m
      array([[1, 2],
             [3, 4]])
      >>> np.rot90(m)
      array([[2, 4],
             [1, 3]])
      >>> np.rot90(m, 2)
      array([[4, 3],
             [2, 1]])
      >>> m = np.arange(8).reshape((2,2,2))
      >>> np.rot90(m, 1, (1,2))
      array([[[1, 3],
              [0, 2]],

  > [[5, 7],
  >   [4, 6]]])