((1) + (2))


In Java, ( and ) mean grouping or function call.

In ML, ( and ) mean grouping or tuples (and they have nothing to do with function calls).


f (3);

f (3,4,5);

f (2,3);

f 3;
f 3 4;
f (3,4);
f ((3,4)) ((5,6));

fun f (x,y) (u,v) = x + y + u + v;

fun f (x:real) y = x + y;


(* ML, F#, Caml, Ocaml, Haskell *)