Hello all.
If you remember forum member Jose Goncalves' hptree.pdf file, 'The Real Roaring 20s,' a line goes up from the HP-65 to an HP-66. Just the same, a line extends up from the HP-55 to the HP-56. But, there are no pictures or write-up of an HP-56 or HP-66 here at MoHPC. So, just what are these models and where can I see a pic and find out about them?
Thanks
Edited: 3 Aug 2012, 1:01 a.m. after one or more responses were posted