How about: when both arguments of are identical you can make a verb that normally needs two arguments into an expression with one argument
x+x +~x Donna [email protected] On 2012-10-06, at 2:30 PM, Brian Schott <[email protected]> wrote: > John, > > I am not the author of that blog; Konrad Hinsen is. > However, I had the same confusion when I first read the blog. > > On Sat, Oct 6, 2012 at 1:27 PM, John Corrie <[email protected]> wrote: >> Making J available on mobile devices is exciting, having waited impatiently >> for APL to become more widely used I hope that this might do it for J. >> >> I have a suggestion re the text in your link, I quote:- >> >> "For example, the adverb ~ makes a one-argument verb from a two-argument >> verb by setting the two arguments equal. With + standing for plain addition, >> +~ thus doubles its argument: >> >> +~ 1 5 10 20 >> 2 10 20 40 " >> >> I found the 'one argument verb from 2 argument verb' confusing, and wanted >> to say it the other way round. Why not put in the extra row:- >> >> +~ 1 5 10 20 >> Is the same as >> 1 5 10 20 + 1 5 10 20 >> >> John Corrie > > -- > (B=) > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
