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HP-28s
12-13-2019, 04:19 PM
Post: #1
HP-28s
Does anyone know if there is anyplace to find a programming book for the 28s
I used to have one but after I destroyed my old 28s I threw them away and now regret it very much as I have just acquired a pristine replacement but forget a lot of my old programs
So I need to find something to jog my memory or relearn how to program it.
Thanks for any help you may be able to give me.
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12-13-2019, 11:33 PM
Post: #2
RE: HP-28s
I googled HP-28s manual and found this weblink.
http://holyjoe.org/hp/HP-28S_Owner%27s_Manual.pdf
Hopefully, this is what you need.
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12-13-2019, 11:51 PM
Post: #3
RE: HP-28s
Bill Wickes' excellent book "HP-28 Insights Principles and Programming of the HP-28C/S" is almost certainly the best book, however it's fairly rare and hard to find. But, some good news is this book is included in the MoHPC USB Drive collection, available here.

This collection also includes the analogous books for the 48SX and 48GX, which are extremely similar (though not exactly) and they provide additional insights which can be used when working on the 28 machines.

"HP-28S Software Power Tools: Utilities" is also included though I've never read it so can't comment on it specifically.

And of course it also includes all the HP manuals and Solution Books too.

This collection is probably the best value you'll find for resources like this.

--Bob Prosperi
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