On Thu, May 28, 2009 at 10:51:33AM -0400, John Macdonald wrote: : Yes. The full expression in raw APL for n! is: : : */<i>n : : (where <i> is the Greek letter iota - <iota>n is Perl's 1..$n).
Only if the origin is 1. This breaks under )ORIGIN 0. <cough> $[ </cough> By the way, the assumption here is that everyone can process Unicode, so it's fine to write */⍳n. :) Note that that's the APL iota U+2373, not any of the other 30 or so iotas in Unicode. :/ Well, okay, half of those have precomposed accents, but still... Larry