[HP-12C] Angular coefficent from linear regression off by 1

[Marcio]

(05-03-2016 12:14 PM)HP67 Wrote:  

(05-02-2016 11:16 AM)Marcio Wrote:  HP powered this machine on an air-plane engine. The thing is faster than speed of light. I wonder what the battery (2x CR2032) consumption is like, though.

I guess you mean the new ARM powered version? I have a 3 battery 12C from the 1980s and the batteries last about 10 years...

I think so. The 12C I have is one of the most recent, guessing from 2009. I bought it to save wear on my near-mint 15C.
The keys will double-register sometimes and the labels are painted on. The display is not very good quality either, read somewhere that life expectancy is about 3-4 years if used daily. Replacing batteries once a year is fine with me.
We'll see.