I think I've dreamt of this one for days, weeks,
months.
It represented the utmost level of knowledge through people able to use it.
At this time, I was in High School and my HP 21 was already enough to avoid cruising along trigonometry tables...
(see HP 97)
It represented the utmost level of knowledge through people able to use it.
At this time, I was in High School and my HP 21 was already enough to avoid cruising along trigonometry tables...
(see HP 97)
Click on the picture to access
The Museum of HP Calculators