The numbers or letters in the right-hand argument are shifted by the number of places specified in the left-hand argument. The shift is to the left if the left- hand argument is a positive number and to the right if it's a negative number.
1 ² 1 2 3 4 5 6 (Each number moves one place to 2 3 4 5 6 1 the left. This displaces the first number to the end of the line) 3 ² 'ABCDEFGH' (Each letter moves left 3 places. DEFGHABC This displaces the first 3 letters to the end of the line) TABLE 1 2 3 4 5 6 7 8 9 0 3 ²TABLE (The numbers in each row are moved 4 5 1 2 3 3 places to the left. Equivalent to 9 0 6 7 8 3²[2]TABLE) ¯2 ²'ABCDEFGH' (The negative number means a shift GHABCDEF to the right. All letters are moved 2 places right)
Similar axis considerations apply to rotate. By default ² applies to the last dimension (as in the example above. First axis rotate, ´, applies by default to the first dimension, but otherwise behaves similarly.
Reverse and rotate can be used for selective specification.