Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!mips!news.cs.indiana.edu!arizona.edu!arizona!amethyst!math.arizona.edu!weg From: weg@convx1.ccit.arizona.edu (Eythan Weg) Newsgroups: comp.lang.apl Subject: Re: J questions Message-ID: Date: 4 Apr 91 06:14:51 GMT References: <2APR91.18555001@uc780.umd.edu> Sender: news@amethyst.math.arizona.edu Organization: University of Arizona, Economics Dept. Lines: 9 In-reply-to: cs450a03@uc780.umd.edu's message of 2 Apr 91 18:55:50 GMT I will revise my first question: Let t=.2 : '(x.1{.y.),_1{.y.'. Now ^&2 t 2 3 should produce 4 3. I want to see t as a black box which operates on the right on vectors. Now how do I deal with a matrix whose rows are supposed to serve as a series of right operands? How can I force the conjunction to behave as if it is a verb with a specified right rank? So if a=.i.4 then ^&3 t "1 a will give 2 2$0 1 8 3. My problem is that " works essentially on verbs. Thank you. Eythan