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From: ir645@sdcc6.UUCP
Newsgroups: net.lang.apl
Subject: Re: Data structures in APL (re: proliferation of operators)
Message-ID: <2616@sdcc6.UUCP>
Date: Fri, 16-May-86 15:18:16 EDT
Article-I.D.: sdcc6.2616
Posted: Fri May 16 15:18:16 1986
Date-Received: Mon, 19-May-86 03:32:15 EDT
References: <2997@decwrl.DEC.COM>
Reply-To: ir645@sdcc6.UUCP (Laurence Weiss)
Organization: U.C. San Diego, Academic Computer Center
Lines: 24

In article <2997@decwrl.DEC.COM> peterson@cmkrnl.DEC (My God, it's full of stars!) writes:
>I have heard of some APLs which implement nested arrays.  Sounds like a
>step in the right direction.  But what do nested arrays buy the average
>APL user?  Besides 3 character string arguments to functions, I mean.
>
>-bob	usenet: decwrl!dec-rhea!dec-vaxwrk!peterson
>        arpa:	peterson%vaxwrk.DEC@decwrl.ARPA

Scientific Time Sharing (STSC) of Rockville Maryland 301-984-5000 has a
product "APL*PLUS/UNX" which is a nicely extended APL implimentation for
unix systems.  It includes such extended features as generalized arrays, grade
sorts matricies, text by user collating sequence, each operator does for user
functions and APL system functions what scan, compress, inner/outer product do
for primitive operators (this elimenates almost all loops).  Includes "Native
Mode File" functions, ie quad-NREAD to read standard text files.

I've used their APL on an IBM PC which has all the above except generalized
arrays and the each function.  It is a beautiful implimentation.  I have not
tried the /UNX versions.

I have no formal relationship with STSC.  I am doing some testing (unpaid) for
them.

Dan Graifer