HP 12c Platinum Quick Start Manual page 7

Guide are included for reference. Refer to these pages of the user's
guide for more information.
Table 1- 1 Basic Functions
Functions
Turn calculator
on/off
(page 16).
Operating
mode
(page 20).
Display contrast
(page 16).
Display/Description
Turns calculator on. Pressing
calculator off. The calculator turns off
automatically12 minutes after it was last used.
T
1. Press ALG to set the operating mode to
Algebraic mode.
T
2. Press RPN to set the operating mode to
Reverse Polish Notation (RPN) mode.
3. Note the "RPN" or "ALG" indicator. RPN is the
default operating mode.
T
Press and hold
to adjust the display contrast, darker or lighter,
respectively.
S
again turns the
;
while pressing
Getting Started 3
Z
or