Enclose R←⊂Y

Y may be any array. R is a scalar array whose item is the array Y. If Y is a simple scalar, R is the simple scalar unchanged. Otherwise, R has a depth whose magnitude is one greater than the magnitude of the depth of Y.

Examples

     ]Boxing on
      ⊂1
1
      ⊂'A'
A
      ⊂1 2 3
┌─────┐
│1 2 3│
└─────┘
      ⊂1,⊂'CAT'
┌───────┐
│┌─┬───┐│
││1│CAT││
│└─┴───┘│
└───────┘
      ⊂2 4⍴⍳8
┌───────┐
│1 2 3 4│
│5 6 7 8│
└───────┘
      ⊂⍳0
┌┐
││
└┘
      ⊂⊂⍳0
┌──┐
│┌┐│
││││
│└┘│
└──┘
      ⊂⊂10
10

See also: Enclose with Axes.