in the J programming language,
-: i. 5
the above function computes the halves of all integers in [0,4]. Now let's say I'd like to re-write the -: function, just for the fun of it. My best guess so far was
]&%.2
but that doesn't seem to cut it. How do you do it?
%&2 NB. divide by two
0.5&* NB. multiply by one half