It's a primitive function. They are described in section 10.2.17 and 10.2.18 of the standard.
Regards, Elias On 3 June 2014 12:04, Blake McBride <blake1...@gmail.com> wrote: > On Mon, Jun 2, 2014 at 10:55 PM, Chris Jones <cjns1...@gmail.com> wrote: > >> On Mon, Jun 02, 2014 at 11:05:01PM EDT, Blake McBride wrote: >> >> >> > Thanks. That operator is not on my keyboard, and cutting-and-pasting >> > it into GNU APL (unless I am making a mistake) doesn't accept it >> > either. >> >> Per the output of ]keyb you would need to hit the quote key (left of >> enter) on a US keyboard + whatever modifier you use to produce APL >> symbold. >> >> > Am I missing something (like a better keyboard)? Is that a standard >> > (IBM defined) operator? >> >> Not sure if it's a primitive function or an operator. I see it briefly >> mentioned as "left tack" p. 474 in Appendix A of the APL2 Language >> Reference. >> > > > That manual lists those _characters_ but does not associate any operation > to it. I think it is not an IBM APL 2 operator. > > > >> >> CJ >> >> >
