The group you are posting to is a Usenet group. Messages posted to this group will make your email address visible to anyone on the Internet.
Your reply message has not been sent.
Your post was successful
 |
Newsgroups: comp.lang.scheme
From: Jon Harrop <use...@jdh30.plus.com>
Date: Fri, 19 Aug 2005 17:25:59 +0100
Local: Fri 19 Aug 2005 17:25
Subject: Re: Ray tracer in Stalin
Förster vom Silberwald wrote: In Mathematica: > (define > (map2e::obj fun::obj lis1::pair-nil lis2::pair-nil) > (match-case (list lis2 lis2) > [(() ()) '()] > [((?h1 ???t1) (?h2 ???t2)) > (cons > (fun h1 h2) > (map2 fun t1 t2))] > [(?- ?-) (error "map2" "invalid list argument" (list lis > lis2))])) Map2[f_, {}, {}] := {} I thought the "?h1" vs "h1_" and "???t1" vs "t1___" was quite -- You must Sign in before you can post messages.
To post a message, you must first join this group.
Please update your nickname on the subscription settings page before posting.
You do not have the permission required to post.
| |||||||||||||