Earliest handheld / battery calculator with hyperbolics?
|
05-09-2018, 03:26 AM
(This post was last modified: 05-09-2018 05:46 AM by Steve Simpkin.)
Post: #3
|
|||
|
|||
RE: Earliest handheld / battery calculator with hyperbolics?
It appears that HP's first handheld with hyperbolics was the HP-27 introduced around Jan 1976, two years after the SR-50.
Edit: Demosthenes wrote to me and mentioned he thought the HP-32E (introduced in 1978) was the first HP handheld model with hyperbolics. I was going by the features listed for the HP-27 on this site. http://www.hpmuseum.org/features/27f.htm After looking at the pictures of the HP-27 keyboard, I don't see hyperbolic keys like I do on the HP-32E. I think that Demosthenes is right and the HP-27 features page is wrong. |
|||
« Next Oldest | Next Newest »
|
Messages In This Thread |
Earliest handheld / battery calculator with hyperbolics? - Gene - 05-08-2018, 09:16 PM
RE: Earliest handheld / battery calculator with hyperbolics? - Gene - 05-08-2018, 09:51 PM
RE: Earliest handheld / battery calculator with hyperbolics? - TomC - 05-13-2018, 09:35 PM
RE: Earliest handheld / battery calculator with hyperbolics? - Steve Simpkin - 05-09-2018 03:26 AM
RE: Earliest handheld / battery calculator with hyperbolics? - rprosperi - 05-09-2018, 12:55 PM
RE: Earliest handheld / battery calculator with hyperbolics? - Didier Lachieze - 05-09-2018, 08:11 AM
RE: Earliest handheld / battery calculator with hyperbolics? - Gerald H - 05-09-2018, 01:43 PM
RE: Earliest handheld / battery calculator with hyperbolics? - Steve Simpkin - 05-09-2018, 01:58 PM
RE: Earliest handheld / battery calculator with hyperbolics? - Gerald H - 05-09-2018, 02:05 PM
RE: Earliest handheld / battery calculator with hyperbolics? - Dave Hicks - 05-13-2018, 04:29 AM
|
User(s) browsing this thread: 1 Guest(s)