Sharp el-9950

47
Chapter 2: Operating the Graphing Calculator
Resetting the Calculator
Use the reset when a malfunction occurs, to delete all data, or to set all mode values
to the default settings. The resetting can be done by either pressing the reset switch
locatedinthebatterycompartment,orbyselectingtheresetintheOPTIONmenu.
Resettingthecalculator’smemorywillerasealldatastoredbytheuser;proceedwith
caution.
1. Using the reset switch
1. Pulldownthenotchtoopenthebatterycoverlocatedonthe
back of the calculator.
2. Placethebatterycoverbackuntilthenotchissnappedon.
3. Wait a few seconds and press
O
.
The verification window will
appear on the screen.
4. Press
C
to clear all the
storeddata.Press
O
to
cancelresetting.After
C
is pressed, the calculator's
memorywillbeinitialized.
Pressanykeytodisplaythe
calculation screen.
Note: If the above verification window does not appear, remove the
battery cover and gently push the RESET switch with the tip
ofaball-pointpenorasimilarobjectwhilepressing
O
simultaneously.
DO NOT use a tip of a pencil
or mechanical pencil, a broken
lead may cause a damage to
the button mechanism.