As far as I understand, it's an extension that is unique to GNU APL. Regards, Elias
On 3 June 2014 10:37, Blake McBride <blake1...@gmail.com> wrote: > Greetings, > > APL-1 did not allow functions to be defined with [ and ] in the header. > I've seen it done in GNU APL as follows: > > ∇fun[⎕]∇ > ∇ > [0] fun[x]y > [1] x > [2] y > ∇ > > fun[4]55 > 4 > 55 > > I understand what is going on, but I was looking for it in the APL-2 > manuals. I couldn't find it in any of the IBM manuals (and the spec is > unreadable to me). So, my question is, where in the IBM APL-2 Language > Manual is it shown? Any place else? > > Thanks. > > Blake > >
