I just went through the Internet Archive's issues of MacWorld from back in the day and think I found the software.

On page 9 (10 in the archive) of the April 1988 issue there is an advert for Eureka: The Solver by Borland International (Of course! They had such excellent software for years.)

There is a writeup about it on pages 191-192 (pages 192-193 in the archive).

One of the tools available is a polynomial finder. That is the tool that I used.

I will look around to see whether I still have the disk.

I should still have my MathCAD disks somewhere. That wasn't the application though. I recognize TK!Solver too but I don't think it was that software.

I may need to scan old MacWorld magazine images to find it.

Maple?

No it wasn't Maple. I'm familiar with Maple. I found it by following ads in MacWorld magazine back in the day. It should be identifiable by checking issues between December 1984 and May 1987.

https://archive.org/details/macworld-magazine has the scans

Thank you for the link. I'm pretty sure I found it in the Internet Archive's issues of MacWorld from back in the day.

On page 9 (10 in the archive) of the April 1988 issue there is an advert for Eureka: The Solver by Borland International (Of course! They had such excellent software for years.)

There is a writeup about it on pages 191-192 (pages 192-193 in the archive).

One of the tools available is a polynomial finder. That is the tool that I used.

I will look around to see whether I still have the disk.

I also found my favorite, and first computer game since it was my first computer.

Silicon Beach Software put out a game called Airborne! in 1984. I got the Mac in January 1985 and bought that game with it. Fun stuff!

Thanks for the help.

Thanks. I'll dig through and see what I can find or dig through my disk archive.

https://www.macintoshrepository.org/37630-eureka-the-solver has a .sit

The author's page: http://www.spinstop.com/roger/eureka.htm