SCOUG-Programming Mailing List Archives

<< Previous Message << >> Next Message >>

Date:	Tue, 20 Apr 2004 16:25:17 PDT7
From:	Zdenek Jizba <jizba@verizon.net >
Reply-To:	scoug-programming@scoug.com
To:	scoug-programming@scoug.com
Subject:	SCOUG-Programming: May SIG meeting

Content Type: text/plain

"Lynn H. Maxson" wrote:

> Zdenek Jizba has offered to demonstrate his means of testing
> his APL programs. I have offered him a suitable machine to
> present his process in our May meeting.
>

Here is an outline of my presentation:

Starting in 1962 most of my system development I did
myself or at most with the help of one technician/programmer.
The applications were in the area of geology which involves
mostly character manipulation and only occasionally numerical
computation. The early FORTRAN programming language
was inadequate for this task. The IBM 1401 applications
(using AUTOCODER) if successful became either obsolete
with the introduction of IBM360, or were rejected by
the professional earth scientists (as likely to destroy jobs).
Assembling AUTOCODER source decks into object decks
made me realize the waste of development time in debugging.
So when time sharing RUSH came, (a version of PL/1) it made
me aware of the advantage of interpreted expressions in
program development without having to compile. This experience
led me to accept APL when it became available in house.
Over a period of some 20 years I developed an approach
that I call "Blueprint functions". I found it extremely useful
in development of applications, in testing, in refreshing my
memory of the algorithms, and in instructing others.
As an example I will show the documentation of function
"tab" which is used to tabulate data.

Any suggestions on the presentation using this outline will
be welcome.

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

To unsubscribe from this list, send an email message
to "steward@scoug.com". In the body of the message,
put the command "unsubscribe scoug-programming".

For problems, contact the list owner at
"rollin@scoug.com".

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

Return to [ 20 | April | 2004 ]

SCOUG, Warp Expo West, and Warpfest are trademarks of the Southern California OS/2 User Group. OS/2, Workplace Shell, and IBM are registered trademarks of International Business Machines Corporation. All other trademarks remain the property of their respective owners.