An HP-34E?

[Mike Morrow]

(12-15-2013 09:21 PM)Matt Agajanian Wrote:  Then, with the release of the 34C, it would seem the 34C a best option as an affordable and versatile compromise to the full featured 67.

The HP-67 was my first HP...it and its accessories cost me two months of my take-home pay as a naval officer in 1977. I had a lot invested!

However, in many ways I don't think the 67 can be termed full-featured, when it lacks the SOLVE and INTEGRATION functions that the 34C pioneered for HP hand-helds. IMHO the 34C is, overall, the firmware-quality high-point in HP's LED scientific calculator line. Too bad it had such pathetic mechanical construction. And it is probably the slowest programmable that HP ever made. It appeared two years after the HP-67.