Getting Started   3
Before beginning the two sample problems, follow the steps on this page to
reset the TI
-
80 to its factory settings. (Resetting the TI
-
80 erases all previously
entered data.) This ensures that following the keystrokes in this section
produces the same actions.
1. Press 
´
 to turn the calculator on.
If the screen is very dark or blank, adjust the display
contrast. Press and release 
2
, and then press and
hold 
8
 (to make the display lighter) or press and
hold 
7
 (to make the display darker). You can press 
M
 to clear the display.
2. Press and release 
2
, and then press 
µ
. (Pressing 
2
 gives you access to the 
2nd
 operations, which are
printed at the upper left of the keys. 
MEM
 is the
2nd
 operation of the 
µ
 key.)
The 
MEMORY
 menu is displayed.
3. Press 
3
 to select 
RESET... 
from the 
MEMORY
 menu.
The 
MEMORY RESET 
menu is displayed.
4. Press 
2
 to select 
RESET 
from the 
MEMORY RESET
menu. The calculator is reset, and the
MEM CLEARED
 message is displayed.
First Steps