reverse
Returns an object with its elements reversed.
Syntax
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reverse(X)-
Xis any ordered container
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Description
If X is any ordered container, then reverse(X) returns X with its elements in the reverse order.
X can be a string, a vector, a matrix, a list, a pixmap, a sound, or a binary data object. For two-dimensional objects (matrix and pixmap), row-major order is used.
Examples
L ≔ '("ERISED", ❨1, 2, 3❩, ❨❨1, 2❩, ❨3, 4❩❩, '("cat", "dog"))
ERISED (1, 2, 3) ((1, 2), (3, 4)) (cat, dog)
reverse(L @ reverse)
(dog, cat) ((4, 3), (2, 1)) (3, 2, 1) DESIRE
L ≔ compute(n^2, n, 1, 1000000);
pick(L, n ↦ (s ≔ string(n); s = reverse(s)))
1 4 9 121 484 676 10201 12321 14641 40804 44944 69696 94249 698896 1002001 1234321 4008004 5221225 6948496 100020001 102030201 104060401 121242121 123454321 125686521 400080004 404090404 522808225 617323716 942060249 10000200001 10221412201 12102420121 12345654321 40000800004 637832238736
bm ≔ ComputePixmap(200, 200, x, y, rgb(x/199, y/199, 0.5))
reverse(bm)
reverse(ExampleData("London"))