William E. Sabin wrote:
...The book includes a compact disk that contains a virtually-free
copy of the world-famous and very sophisticated program MATHCAD, version
14.0. This program can be used in a very elementary mode at home by new
beginners and also in a very advanced mode by mathematically-sophisticated
engineers. The software has a perpetual lifetime, and can be used "forever"
for a multitide of applied-math calculation projects.

First of all, allow me to add my congratulations to you, Bill, for
publishing a new book. It sounds like a valuable addition to both
professional and amateur libraries.

Just so one knows, just what are the limitations of the included
Mathcad program. Is it somewhat like a 'student version' or
'promotional version' that is limited in the number of steps or
number of variables that can be programmed? Or are the limitations
more exotic, such as not supporting regression analysis and that
kind of thing? Not that such a limitation would be a show-stopper.
One may learn a great deal from student copies of programs like
PSpice. It's just that it would be nice to know this going in.

Jim, K7JEB, Glendale, AZ, USA