≠ Not equal

Compares each element in the right-hand argument with the corresponding element in the left-hand argument and returns 1 if they are not equal and 0 if they are. (This operation is affected by ⎕CT, the comparison tolerance function)

             12 ≠ 12
       0
             2 ≠ 12
       1
             'Q' ≠ 'Q'               (Compares character data)
       0
             11 7 2 9≠11 3 2 6       (Compares each element in a vector with
       0 1 0 1                        the corresponding element in a vector of
                                      equal length)
             'STOAT' ≠ 'TOAST'
       1 1 1 1 0
             8 ≠ 2+2+2+2             (The right argument is evaluated
       0                              before the comparison is made)
             TABLE ← 2 3 ⍴ 1 2 3 4 5 6
             MABLE ← 2 3 ⍴ 3 3 3 5 5 5
             TABLE ≠ MABLE           (Compares each element in a matrix
       1 1 0                          with the corresponding element in
       1 0 1                          a matrix of equal size and dimensions)
             3≠TABLE
       1 1 0
       1 1 1
             3 ≠ TABLE MABLE         (Compares 3 with the elements of the
        1 1 0  0 0 0                  nested vector)
        1 1 1  1 1 1