Isn't it a sad thing how PTC is now recycling a couple of old Mathcad E-books? Without the ability of hyperlinks to hold together associated parts which belong together and without the ability to easily access those files from within Mathcad as we were used to.
It also seems that PTC staff is not aware of how many features are missing in Prime compared to Mathcad. Or can somebody explain how to follow the instructions given in one of the sheet (see screenshot below, but we don't have static symbolics in Prime). You will find a lot of that kind of descrepany and idiosyncrasy in those sheets.
Why not just wait until Prime is at least at the level of Mathcad and convert the old sheets then?
Also the place and way to present those sheets as postings in a forum is a bit strange and sure inappropriate. Static content doesn't fit a dynamic medium, even if a table of content is updated with every post and anchored as "Featured Documents".