> I can not think of an expression off the top of my head which > would use four arguments, hopefully their use is obvious?
The dyad of a conjunction. e.g. x +"r y The four arguments are: x; +; r; y p.s. I am not saying that I agree with Neville Holmes' suggestion. ----- Original Message ----- From: Raul Miller <[email protected]> Date: Saturday, July 25, 2009 8:33 Subject: Re: [Jprogramming] Third argument To: Programming forum <[email protected]> > On Sat, Jul 25, 2009 at 6:38 AM, neville > holmes<[email protected]> wrote: > > Having a third, and even a fourth, argument need not > > be difficult and would certainly be useful, especially > > (in my direct experience) in teaching beginners tacit > > programming. > > > > At the risk of boring long-term readers of this forum, > > my repeated suggestion has been for the use of [. and > > ]. to bring in operands just as [ and ] bring in > > arguments. Then with &[. [.& &]. or ].& you would > > effectively have third and fourth arguments. There > > would be many other simplifications then made available > > as well. > > Perhaps: > 0&{:: > 1&{:: > 2&{:: > 3&{:: > > This gives you four arguments. And, for some domains, > you can use n&{ instead of n&{:: > > I can not think of an expression off the top of my head which > would use four arguments, hopefully their use is obvious? ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
