RosettaCodeData/Task/Time-a-function/J/time-a-function.j

   (6!:2 , 7!:2) '|: 50 50 50 $ i. 50^3'
0.00488008 3.14829e6
   timespacex '|: 50 50 50 $ i. 50^3'
0.00388519 3.14829e6