That 'number of years' should be about 20...
In the meantime, MathSoft has been taken over by PTC, and they first brought out Mathcad 15, then lost focus of Mathcad. They started to develop Prime, which is at version 9 now, and almost as powerful as Mathcad 15...
You may have missed this also:
https://community.ptc.com/t5/Mathcad-Tips/Official-PTC-Mathcad-15-and-Prime-1-6-End-of-Sale-Announcement/ta-p/818870
It's worth a try reaching out to PTC support...
Success!
Luc
