HDTenEightyP/NetNews huggingface dataset:
From: acus02@ems13.corp.mot.com (David McAnally)
Subject: mainframe rexx vs. os/2 rexx
Reply-To: acus02@waccvm.corp.mot.com
Organization: MOTOROLA 
Date: Mon, 28 Sep 1992 21:55:49 GMT

I suggest you look into PC REXX from Quercus Software to make it easier
for you.  Quercus markets a OS/2, DOS and Windows version and provides 
many of the CMS REXX functions, like EXECIO.  So it's a little easier to
port programs.  Otherwise, you must detect those functions and commands
that are OS dependent, and either port them to the other OS or detect the
OS currently running and call the correct command for that OS. 

PC REXX (Quercus) is available from most of the larger software mail order
firms.  I think they have an 800 number too, but I've misplaced my info.

In article <BENNYV.920928102637@maine.maine.EDU>  writes:
> does anyone know if rexx programs run on a mainframe are compatible with
> those written under os/2.  if not, id there some kind of migration
> process that will convert these programs back and forth?
> thanks in advance.
> 
> -benny
> 
> =========================================================================
> Benny A. Veenhof                     e-mail: bennyv@maine.bitnet
> Computer Services                            benny@gandalf.umcs.maine.edu
> Campus Living
> University of Maine
> Orono, ME 04469, US                          Lat: 044N 45   Long: 068W 40
> -------------------------------------------------------------------------
> Ruckert's Law: "There is nothing so small that it can't be blown out
>                 of proportion"
> =========================================================================

--
+-------------------------------------------------------------------------+
| David McAnally                     | EMail: acus02@waccvm.corp.mot.com  |
| Motorola Corp. Computer Services   |  Next: acus02@ems13.corp.mot.com   |
| CS / Application Engineering       |                                    |
| M/D AZ49 R3148                     |                                    |
+-------------------------------------------------------------------------+
Newsgroups: comp.lang.rexx
From: xxapollo@utagraph.uta.edu (Mr. Apollo Silva)
Subject: Re: REXX communications program?
Organization: University of Texas at Arlington
Date: Mon, 5 Oct 1992 20:19:36 GMT

Please furnish the mailing address for Quercus.  Thanks.

ZARET@MITVMA.BITNET (Robert E. Zaret) writes:
: REXXTERM (from Quercus) is avaiable for OS/2 as well as DOS; if you
: order the OS/2 version, you get both.
-- 
   | Apollo R. Silva: xxapollo@decster.uta.edu |
   |                : c144ars@utarlvm1.uta.edu |
   |   The University of Texas at Arlington    |
Newsgroups: comp.lang.rexx
From: mcampbel@cs.ucf.edu (Mike Campbell )
Subject: Re: REXXTOOLS/MVS
Organization: University of Central Florida
Date: Tue, 29 Sep 1992 23:32:56 GMT

111779@adpdp2.lanl.gov (111779) writes:

>For all of using REXX in the MVS environment.  I saw a great new toolbox that
>includes a compiler for REXX, allows dynamic allocations of Hostcommand
>environments and function packages, has great stem variable functions
>(like sorting stem variables etc.) and lots more.  The next release is supposed
>to have an static and dynamic SQL interface to DB2.

>For more information call:

>Open Software Technologies, Inc.
>P.O. Box 162652
>Altamonte Springs, FL 32714
>(505) 834-2822

IF this phone number is for this office, the area code is incorrect.  
Altamonte Springs' area code is (407).

Again, this phone may be for a different office.  Just thought I'd point
that out to save some possible confusion later.

Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
Newsgroups: comp.lang.rexx
Date:         Tue, 29 Sep 1992 08:55:06 CST
From:         Jim Colten <IJIM@UMINN1.BITNET>
Subject:      Re: REXX communications program?
              28 Sep 1992 14:12:36 GMT from <jardined@QUCIS.QUEENSU.CA>

On Mon, 28 Sep 1992 14:12:36 GMT Donald Jardine said:
>Does anyone know of a pure REXX program that allows data comm
>on the serial ports of OS2, with both send and receive, and modem
>control.  C programs exist to do this.  Is there a REXX program that does
>not make use of a called C program to handle the actual IO?
>
>Donald Jardine
>Computing Science Dept. Queen's University, Kingston Ont.  Canada.


It is unlikely that one could do a satisfactory job of this using 'pure' REXX
and nothing else.  This generally involves interupt handlers that receive the
incoming data and buffer it.  Interpreted REXX is just too slow to keep up with
incoming data. Now, perhaps OS/2 provides that sort of thing as part of its
base function, I do not know.  Otherwise, you need a function package that
provides the interupt handler, buffers data and provides 'send', 'receive' and
'control' functions callable from REXX.

Quercus Systems, the Personal REXX vendor, sells a very nice terminal emulation
package named REXXTERM.  It uses Personal REXX as a macro language.  IFF there
is an OS/2 version (I don't know, sorry), it may well do what you need.
Comments: Gated by NETNEWS@AUVM.AMERICAN.EDU
Newsgroups: comp.lang.rexx
Date:         Tue, 6 Oct 1992 11:35:51 PDT
From:         Dave Gomberg <GOMBERG@UCSFVM.BITNET>
Subject:      Re: Expressions in compound variables (was Re: NOVALUE)

On Tue, 6 Oct 1992 13:11:44 GMT Alasdair Grant said:
>I've always wanted a.x _not_ to evaluate x, i.e. to use x as a field name,

Let's just ask, what is the way to "print" the variable whose name has root
"a" and extension "x".  One way is y='x'; Say a.y  but we seek something
simpler and more natural, right?   Any suggestions?

Dave Gomberg    GOMBERG@UCSFVM  Internet node UCSFVM.UCSF.EDU  (415)731-7793
Seven Gateview Court, San Francisco CA 94116-1941
Newsgroups: comp.lang.rexx
Newsgroups: comp.lang.rexx
Date:         Mon, 28 Sep 1992 22:08:07 PDT
From:         Dave Gomberg <GOMBERG@UCSFVM.BITNET>
Subject:      Re: OS/2 Rexx
              28 Sep 1992 17:51:37 GMT from <stephen@UNITY.NCSU.EDU>

Well, for learning REXX there is that perennial favorite, Modern
Programming Using REXX by O'Hara and Gomberg.  Of course, other
than being an author, I have no connection with this book, and your
buying it only puts $1 in my pocket.

There is also TRL by Cowlishaw and Programming in REXX by Daney.
Have fun.   Dave

Dave Gomberg    GOMBERG@UCSFVM  Internet node UCSFVM.UCSF.EDU  (415)731-7793
Seven Gateview Court, San Francisco CA 94116-1941
Newsgroups: comp.lang.logo
From: johns@macadam.mpce.mq.edu.au (John Savage)
Subject: WANTED: email address of LADYBUG author
Originator: johns@macadam.mpce.mq.edu.au
Organization: School of MPCE, Macquarie University, Australia.
Date: Tue, 6 Oct 1992 08:23:39 GMT


Does anyone know if the author of a simple logo called LADYBUG has an email
address?
The compuserve address listed in the documentation is apparently no longer
appropriate, as I sent mail to it ( 73145,153 ) but it was returned.
(Admittedly, the file IS nine years old!)

-----------------------------------------
John Savage
School of Maths, Physics, Computing & Electronics,
Macquarie Univerity.
Sydney.  Australia.                email: johns@macadam.mpce.mq.edu.au
-----------------------------------------
From: s2874066@techst02.technion.ac.il (Eyal Peleg)
Newsgroups: comp.lang.logo
Subject: LOGO riddle/task/thing to think about
Date: 30 Sep 92 23:11:10 GMT
Organization: Technion, Israel Inst. of Technology

hi all,
 
Here is a little logo problem to think about,
I know its not simple to solve using LOGO WRITER in CGA mode,
I am not sure how hard will it be on other logo implementations.
Here goes:
 
Your mission if you will choose to accept it is:
  Draw a vertical line that starts from home [0 0] and ends at [0 90],
  This line should not be a continuous one but should be 4 pixels on and 1 off
  something like "---- ---- ---- ---- ---- ...."
 
When you answer please include the following:
 1) What logo did you use
    (what resolution both screen and logo window
     for example LOGOWRITER 2.0 CGA (640x200) (+-160,+-95) )
 2) Your solution/s
 3) How much time it took you to solve reach them
 4) How many and what kind of other (not working) solutions did you try
 5) your opinion of this problem
 
EASY STREET :
 if its too difficult for you try the same but horizontal (heading 90)
THOUGH ONES :
 if its too simple for you try the same with heading 45 deg
 
 GOOD LUCK
 
  eyal peleg
  s2874066@techst02.technion.ac.il
Newsgroups: comp.lang.logo
From: dal3@cbnewsg.cb.att.com (dale.e.parson)
Subject: books for the FAQ
Keywords: books
Organization: AT&T
Date: Wed, 30 Sep 1992 14:56:58 GMT

Let's don't forget:

Turtle Geometry
The Computer as a Medium for Exploring Mathematics
Harold Abelson & Andrea disSessa
1980, MIT Press.

The turtle gets to do some fractal geometry in the following book.
It's a lab-like intro. to chaos and fractals, the labs being
computer listings accompanied by gentle discussions of the
mathematics. Especially good for pre-calculus or rusty-calculus
folks, it goes next to the above book on my shelf. The examples
are in Pascal & BASIC, but the ones I've had time to do I've done
in Logo so far. (Only some of the programs, primarily the fractals,
use turtle geometry.)

The Chaos Cookbook
Joe Pritchard
Butterworth Heinemann, 1992
ISBN 0-7506-0304-6
From: quigley@acs.ucalgary.ca (Martyn Thomas Quigley)
Newsgroups: comp.lang.logo
Subject: Real turtle
Date: 28 Sep 92 00:22:04 GMT
Organization: The University of Calgary, Alberta

I've inherited a genuine Terrapin Turtle, but whilst I have the software to
drive the beast, I don't have any info about how to connect the thing to
an Apple ][e.  I've tried installing the interface board in most of the
slots, but whenever I run the 'setup' routine (after loading the TCL.LOGO
module) it dies.  I would be really grateful if someone could tell me how
to get my Turtle to work.  TVM.

Martyn
From: rrogers@cs.washington.edu (Richard Rogers)
Newsgroups: comp.lang.logo
Subject: Re: logo and lego
Date: 26 Sep 92 20:49:39 GMT
Organization: Computer Science & Engineering, U. of Washington, Seattle


Lego makes interfaces for the Apple 2 and IBM clones for doing robotics with 
Logo.  There is another company that makes a similar interface for the Mac.

Bots makes a RS-232 interface and provides software for the Mac.  I have
written a Modula-2 library for controlling the Hyperbot interface from an
Amiga.
------------------------------------------------------------------------

Hyperbot(tm) Products

by

Bots
905 South Springer Road
Los Altos, CA  94024-4833
Office          (415) 949-2126
Fax             (415) 949-2566
CompuServe      75500,2027


Hyperbot Kit            $315.00
Hyperbot Interface: software which provides an object oriented graphic 
interface for making robotic procedures which control motors and use sensor 
data.
Controller: hardware to link motors and sensors to the serial port of the 
Macintosh.  The Hyperbot interface is a HyperCard stack.  Any software using 
the Macintosh serial port can use the controller for robotic control.
User's Guide: full instructions for using Hyperbot.


Activity Guide - Martian Exploration Vehicle            $25.00
Use Hyperbot to build a prototype vehicle for planetary exploration with 
activities to provide specific challenges and links to science and math 
topics.


Martian Exploration Vehicle Kit         $105.00
Contains a basic LEGO buggy, touch and optosensor, light and cable for use 
with the Activity guide.


Hyperbot, the Programmable Icon
Price $39.00
Simulation of the Hyperbot Interface to let students' cost effectively become 
familiar with the principals of robotic control.  
        
Other kits by LEGO and fischertechnik (range $75 - $250) will work with 
Hyperbot and are available from Bots.
Newsgroups: comp.lang.logo
From: johns@macadam.mpce.mq.edu.au (John Savage)
Subject: HELP WANTED: LSRHS version of LOGO (DOSLOGO)
Originator: johns@macadam.mpce.mq.edu.au
Organization: School of MPCE, Macquarie University, Australia.
Date: Tue, 6 Oct 1992 08:16:38 GMT


I would like to hear from anyone running the LSRHS LOGO, so I can compare
notes on some mysterious behaviour I have found in the version I downloaded
from cher.media.mit.edu as DOSLOGO.

Specifically, I found that PRINT RANDOM 10000 works reliably, but
PRINT RANDOM 32767 works only about one time out of every five times I
execute it. (32767 is the largest positive integer for 16 bits).  Some
integer arguments are not accepted at all - I can live with that, but I
would like the largest range of random numbers, so why does RANDOM 32767
run only erratically??

Furthur, the ASCII function is strange.
To return the ASCII value of the character "0", one should use
PRINT ASCII "0 , but this returns a number cycling through this set, one
value at a time, every time it is run:
232 232 124 124 90 90 158 1158 28 28 !!!   None of these is correct.
To get the correct answer, I can use PRINT ASCII 0 ; but this cannot
be extended to finding the ASCII value of "D", etc.

Apart from these oddities, I like it.

-----------------------------------
John Savage
School of Maths, Physics, Computing & Electronics,
Macquarie Univerity.
Sydney.  Australia.                email: johns@macadam.mpce.mq.edu.au
-----------------------------------
Newsgroups: comp.lang.logo
From: thacher@renbourn.unx.sas.com (Clarke Thacher)
Subject: Re: Logo FAQ (draft)
Date: Wed, 30 Sep 1992 22:17:58 GMT
Organization: SAS Institute Inc.

In article <1992Sep29.230715.29577@softwords.bc.ca> rslade@cue.bc.ca (Rob Slade) writes:
>Someone asked for a FAQ, so ...
>
... 
>Q. Where can I read up on Logo?
> 
A couple of books that talk about the logo style of learning for children:

_Mind Storms_ by Seymour Papert, Basic Books/Harper Colophon Books,
1980, ISBN 0-465-04629-0

_The Second Self, Computers And The Human Spirit_ by Sherry Turkle,
Simon and Schuster, 1984, ISBN 0-671-46848-0


-- 
Clarke Thacher        OSRD/HIP Software Developer          SAS Institute, Inc.
thacher@unx.sas.com         (919) 677-8000    SAS Campus Drive, Cary, NC 27513
Newsgroups: comp.lang.logo
Subject: Re: logo and lego
From: max@Kolmogorov.gac.edu (Max Hailperin)
Date: 28 Sep 92 09:20:23
Reply-To: Max Hailperin <max@nic.gac.edu>
Organization: Gustavus Adolphus College, St. Peter, MN
In-reply-to: grossman@telly.tc.cornell.edu's message of Sat, 26 Sep 1992 20:16:02 GMTLines: 11

I second most of what Rogers and Harvey said (my connection is that I
developed Hyperbot support for MIT Scheme on the NeXT), but would like
to add the contact information for Lego Dacta:

Lego Dacta
555 Taylor Rd.
P.O. Box 1600,
Enfield, CT 06083-1600
USA

Phone: (800) 526-8339; Fax: (203) 763-2466.
From: bh@anarres.CS.Berkeley.EDU (Brian Harvey)
Newsgroups: comp.lang.logo
Subject: Re: logo and lego
Date: 26 Sep 1992 20:27:45 GMT
Organization: University of California at Berkeley
NNTP-Posting-Host: anarres.cs.berkeley.edu

The Lego company itself sells Lego TC Logo.  Also, several Logo vendors
sell software and interface boxes that work with Lego Technic and other
construction kits.  LCSI, Terrapin, and Paradigm all have robotics
materials.

The primary Logo vendors in North America are

	Logo Computer Systems, Inc.
        3300 Cote Vertu Road, Suite 201
        Montreal, Quebec, Canada H4R 2B7

        514 331-7090
	800 321-LOGO

	They sell LogoWriter for Apple, PC, Mac, etc.

--------------------

	Terrapin, Inc.
	400 Riverside St
	Portland, ME  04103

	207 878-8200

	They sell Logo for Apple, PC, Mac, etc.

--------------------

	Paradigm Software, Inc
	P.O. Box 2995
	Cambridge, MA  02238

	617 576-7675

	They sell Object Logo for the Mac (an especially sophisticated
	version with object-oriented extensions).

--------------------

	Harvard Associates, Inc
	10 Holworthy St
	Cambridge, MA  02138

	800 776-4610

	They sell PC Logo.

========================================

Newsgroups: comp.lang.logo
From: dal3@cbnewsg.cb.att.com (dale.e.parson)
Subject: Re: LOGO riddle/task/thing to think about
Organization: AT&T
Date: Thu, 1 Oct 1992 16:20:22 GMT

In article <1af08oINN3cc@agate.berkeley.edu> bh@anarres.CS.Berkeley.EDU (Brian Harvey) writes:
>s2874066@techst02.technion.ac.il (Eyal Peleg) writes:
>>  Draw a vertical line that starts from home [0 0] and ends at [0 90],
>>  This line should not be a continuous one but should be 4 pixels on and 1 off
>>  something like "---- ---- ---- ---- ---- ...."
>
>Boy, when I read this message the first time I thought "that's trivial, what's
>the deal?"  But when I actually tried it I learned two things, one was the
>fencepost problem about pixels, and the other is that it's even harder in
>Berkeley Logo, because it tries to set the aspect ratio according to what the
>graphics hardware says is right, and for my CGA laptop that comes out some
>non-integer ratio.
>
>(Berkeley Logo tries to arrange things so that FD 100 fits within the
>splitscreen graphics area.  For CGA that turns out to mean that one
>vertical turtle step is only (about) half a screen pixel.  If I make it
>exactly half a screen pixel, I can get the desired dotted line with
>PD FD 2 PU FD 3!!  If I use the setting that Berkeley Logo comes up with
>on its own, there's no way I can get uniform dotted lines.  You can't win.)

No problem at all with Berkeley Logo on a sparc running X11. I bet my kids
wish they had this machine. I haven't had a chance to run it on my
goofy almost EGA card at home. I wrote the driver for that one, &
I suspect the resolution at 640 x 400 is good enough, but the dithered
colors are another matter. At certain angles they come unglued, giving
underlying undithered colors. I've considered tripling the lines widths to
get rid of incomplete dithering on some line angles, but I've decided
the real solution is to:
1) stay with skinny lines & use clean colors (I've got 8 clean & 8
dithered with that board), the clean ones suffice for most of our uses
2) spring for a real machine with EVGA one of these days (is EVGA at
the top or superseded? has the Christmas price drop come yet? it's been
half year since I last checked, and my sparc is spoiling me for at home work)

CGA is like tiling. The turtle drops bricks on the sidewalk.


Dale Parson, Bell Labs, dale@mhcnet.att.com

 ---------------------------------------------------------------------- 
|    "These words are too solid, they don't move fast enough           |
|     to catch the blur in the brain that flies by, and is gone..."    |
 ----------------------------------------------------------------------
|     Suzanne Vega                                                     |
 ----------------------------------------------------------------------

Newsgroups: comp.lang.logo
From: grossman@telly.tc.cornell.edu (David Grossman)
Subject: logo and lego
Organization: Cornell Theory Center
Date: Sat, 26 Sep 1992 20:16:02 GMT

I'm new to logo (apologies if this is a faq or commonly known), but I
vaguely remember hearing of people driving lego toys with logo commands.
Do software/kits exist?  I'd appreciate any pointers, will summarize if
there's interest.  Am immediately interested in pc/ps2, dos, windows...

Thanks.

--
David Grossman                       grossman@theory.tc.cornell.edu
From: bpjcmjr@coos.dartmouth.edu (Patricia A. Crossett)
Newsgroups: comp.lang.logo
Subject: Address for Terrapin Inc.?
Date: 28 Sep 92 10:33:54 GMT
Distribution: usa
Organization: Dartmouth College, Hanover, NH
Originator: bpjcmjr@coos.dartmouth.edu

I need the address for Terrapin Logo.  It is NOT 376 Malden St. Malden, MA
I would appreciate any help on this. Thanks

Bob Crossett
bpjcmjr@coos.dartmouth.edu
From: s2874066@techst02.technion.ac.il (Eyal Peleg)
Newsgroups: comp.lang.logo
Subject: aspect ratio (was: LOGO riddle/task/something to think about)
Date: 7 Oct 92 00:27:53 GMT
Organization: Technion, Israel Inst. of Technology

In article <1992Sep30.231110.27259@discus.technion.ac.il> I wrote:
>hi all,
> 
>Here is a little logo problem to think about,
>I know its not simple to solve using LOGO WRITER in CGA mode,
>I am not sure how hard will it be on other logo implementations.
>Here goes:
> 
>Your mission if you will choose to accept it is:
>  Draw a vertical line that starts from home [0 0] and ends at [0 90],
>  This line should not be a continuous one but should be 4 pixels on and 1 off
>  something like "---- ---- ---- ---- ---- ...."
>When you answer please include the following:
> 1) What logo did you use
>    (what resolution both screen and logo window
>     for example LOGOWRITER 2.0 CGA (640x200) (+-160,+-95) )
> 2) Your solution/s
> 3) How much time it took you to solve reach them
> 4) How many and what kind of other (not working) solutions did you try
> 5) your opinion of this problem
> 
>EASY STREET :
> if its too difficult for you try the same but horizontal (heading 90)
>THOUGH ONES :
> if its too simple for you try the same with heading 45 deg
> GOOD LUCK
> 
>  eyal peleg
>  s2874066@techst02.technion.ac.il

a most common answer was something like

to solve_the_problem
cs
repeat 18 [pendown forward 4 penup forward 1]
end

and it was refered to as trivial

on most LOGO implementation this does not work because of resolution problems
the problem can be summorized by:
1 turtle step  =/= 1 pixel
and normaly they are not even multiples of each other (integer multiples)

trying to solve it myself (i dont have an answer) on the logowriter CGA mode
i wrote something like this:

to drawit :ratio
repeat 9 [pendown forward 4 * :ratio penup forward 1 * :ratio]
end

to goback :ratio
pu back 45 * :ratio 
left 90 forward 2 right 90
end

to test :from :upto :step
if :from > :upto [stop]
drawit :from
goback :from
test sum :from :step :upto :step
end

and tested it with 
 test 0.7 2 0.05

and none of the lines looked as expected

can someone please tell me how big is a pixel in turtle steps ??
(in logowriter CGA mode)

and another question for those who wrote logowriter
why wasnt .setaspect included ?

i would appriciate any information regarding away to draw small drawings
on logo 
i need to draw stuff about the size of 10*10 pixels and i just cant

thanks 
eyal peleg
From: bh@anarres.CS.Berkeley.EDU (Brian Harvey)
Newsgroups: comp.lang.logo
Subject: Re: aspect ratio (was: LOGO riddle/task/something to think about)
Date: 7 Oct 1992 04:22:27 GMT
Organization: University of California at Berkeley
NNTP-Posting-Host: anarres.cs.berkeley.edu

When I tried [PD FD 4 PU FD 1] the problem I found wasn't about aspect
ratio (although later I had those problems too).  Rather, it was a
fencepost problem.

Suppose that one turtle step equals one pixel.  What happens when you
say FORWARD 1 with the pen down?  Answer: *two* pixels are turned on.
The turtle used to be at, let's say, [0 0].  After moving forward one
step, it's now at [0 1] (supposing it's facing up).  That makes two
pixels that are part of its one step.  If you say FD 100 then the 100
steps include 101 pixels.

(If that seems strange, think about FORWARD 0, which turns on one pixel
in most versions of Logo, namely the one where the turtle is.)

So, if we start at the origin and do PD FD 4 PU FD 1 then the sequence
of events is

1.  No pixels on, turtle at [0 0].
2.  Turtle moves to [0 4], turning on the five pixels at
		[0 0], [0 1], [0 2], [0 3], [0 4]
3.  Pen up.
4.  Turtle moves one step, not changing what's on the screen since
		the pen's up, ending up at [0 5].

Now if we repeat the same steps, five more pixels will be turned
on, from [0 5] to [0 9].  There is no gap!  Every pixel along the
way was turned on.

If there is no aspect ratio problem, the sequence
	REPEAT 18 [PD FD 3 PU FD 2]
should make four-on, one-off dotted lines.

If you *do* have an aspect ratio problem, you'll know it because
the dottedness comes out uneven because of roundoff errors in
convering turtle steps to pixel steps.