I was bored and found a HP-27S

[jebem]

(06-27-2014 12:43 PM)rprosperi Wrote:  Jebem - You've got some catching up to do with your newest toy

Sure, I got the idea... the way Thomas and others took advantage of the Solver feature and managed to twist it into a kind of a programming environment was the reason why I did chase for a HP-27S... I just had to have it!

Actually I was chasing a HP-42S since long time ago (I got it As-New-in-the-Box just yesterday evening!), and I found the HP-27S by accident by reading the related intriguing publications from Thomas, Don, Bob, Luiz and many others here in the MoHPC archives... Thank you all for that!

But even using the Solver in the formal documented way, it is amazing on how easy and fast is to type in a formula with basic logic conditions to solve common problems, without the need to spend time creating programs (as in the other calculator paradigms of the time), and this was available from HP in the 80's!