The star on the HP-15C's display screen

[Dwight Sturrock]

(09-25-2015 12:26 PM)Didier Lachieze Wrote:  It's the Low Battery indicator. It's time to replace the batteries in your 15C and you'll be good for the next 15 years !

Unless you calculate 600 digits of pi or some such long winded program.

I never noticed the long life on my 15C because I was always stealing the batteries to use in my 42S (s).