hp-12c

[Gil]

How do I change the digit separator display from a comma to a period (from 1,22 to 1.22).

[Gene]

Turn the 12C off.

Press and continue to hold down the decimal point key.

While continuing to hold down the decimal point key, turn the calculator on.

Quit holding the keys and you have switched it to comma mode if it was in decimal point mode, or decimal point mode if it was in comma mode.

[Vieira, Luiz C. (Brazil)]

Just to add this info...

[Michael Gauss]

Gene - thank you. I have been stuck in comma mode for over a year.