开云体育

Asking for a friend, his words:
About 30 years ago I started using MathCAD for most of my calculations.

It used standard algebraic display of equations - which after Fortran
seemed so easy ....

I eventually got MathCAD 7 for use with my consulting work? - Was great !

Many years later, I bought MathCAD 13 - and found - to my dismay - that
they (Mathsoft) had not made it backward compatible !

All my old files needed to be seriously modified!? ---- So I stayed with
Version 7 .

My MathCAD 7 was the "standard" version - not the "Professional" version
- although both used the same manual !

Some functions were not available in my standard version - in
particular, "DO" loops !

I managed for years without them --- but then, about 3 years ago, my
requirement for large iterative calculations got to be basically
impossible using my "work-arounds".

I am 82 years old - and not keen to learn a whole new language --- so I
wondered if I could buy an old "used" version of? Mathcad 7
"professional" ? Is such a thing done?

I would hope to put it on my Windows 10 system computer - just the way I
did with my old, standard, MathCAD 7 version.

??With my old standard version, I simply transferred the old file into
the new computer, using the same file file structure, onto the C drive
of the new machine - and it worked !

No fancy installation with codes and passwords required - I was amazed !

If anyone can help me to acquire? the "Professional" version, I`m happy
to pay for the? file and the service. Ron.
Failing that can anyone suggest a modern software package with an easy learning curve to replace the MathCad 7 Professional?
Preferably something without being locked into passwords, auto-billing, and endless updates that prevent work being done (like Microsoft's products).
Bear in mind all his old files will have to be edited.
I realize this is likely to open a can of worms so please be objective to the requirements.
PeterB