Y may be any numeric array.  X may be any numeric array.  R is Boolean.  R is 1 if X is less than Y and X=Y is 0.  Otherwise R is 0.

⎕CT and ⎕DCT are implicit arguments of Less.

Examples

      (2 4) (6 8 10) < 6
 1 1  0 0 0
 
      ⎕CT←1E¯10
 
      1 0.99999999999 0.9999999999<1
0 0 1