Reverse R←⌽[K]Y

Y may be any array. The axis specification is optional. If present, K must be an integer scalar or one-element vector. The value of K must be an axis of Y. If absent, the last axis is implied. The form R←⊖Y implies the first axis.

R is the array Y reversed on the Kth or implied axis.

Examples

      ⌽1 2 3 4 5
5 4 3 2 1

      M
1 2 3
4 5 6
      ⌽M
3 2 1
6 5 4
      ⊖M
4 5 6
1 2 3
      ⌽[1]M
4 5 6
1 2 3