Thanks Henry! >> 17 24 35 +"0 1 i. 5 I can see that from the second example you provide that it was daft trying to change the rank of i, since it is actually + that needs this treatment. I.e. I could have made a verb r0addr1 =: +"0 1 and done (17 24 35 r0addr1 i.5). Cool.
>> 17 24 35 (+ i.)"0 (5) The parsing of your first example still eludes me though. I am assuming that (+i.) is a hook, and that "0 applies not to both its arguments, but to the right one only. That would be interpreted, hm, let's see, x f (g y) IOW the pseudo-expression (17 24 35) + (( i."0) (5)) Of course the actual above expression doesn't work (length error) , but its "sense" works, i.e. when written as a hook. OK, I think I got that now... Is there a better way to rewrite the exact operation of that hook? One that actually works, and makes the x f g y interpretation clear? That is to say, am I getting anywhere here? ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
