excellent info thanks so much Charles

Carmen

On 3/25/2022 2:02 PM, Charles Mills wrote:
I got into a discussion with a retired neighbor about this and he wrote me

I've written system software in assembly and C, when I was writing extensions 
to APL interpreters, but found those languages so much less agreeable than 
writing in APL that I switched to writing in another high-level 
language--English--when I left the APL world.  (I avoided C++ and C# and Java; 
as a functional-programming fan, I dislike object-oriented languages.)

As to APL, even though it was originally a mathematical notation, its 
applications were not limited to math analysis.  Back when, I used it to write 
database software, an editor, graphics software, airline scheduling software, 
and many other things.  But certainly it has never been practical for system 
software except as a modeling tool (where it excelled).

He worked with Ken Iverson at IBM and then at I. P. Sharp. He mentioned three 
APL-derivative languages, J, K and Q.

https://en.wikipedia.org/wiki/J_(programming_language)  From there you can link 
to the other two.

Charles


-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf 
Of Carmen Vitullo
Sent: Friday, March 25, 2022 11:47 AM
To:[email protected]
Subject: Re: FORMAC was ABP

I don't want to keep dragging this thread around but I always wonders
what APL was used for? or what maybe our IBM guys was doing 8 hrs a day
on an APL terminal )

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