|Module 0 - Getting Acquainted|
|Introduction | Lesson 1 | Lesson 2 | Lesson 3 | Lesson 4 ||
|Lesson 0.2: Resetting Defaults|
In this lesson you will reset the TI-83 Plus or TI-83 to its factory default settings. Note that the Reset Defaults command restores all system variables and modes to their original factory setting. It does not erase stored programs or user-defined variables.
Before beginning the course, you should reset the calculator to ensure that the keystrokes in the directions will produce the illustrated results.
[MEM] is located above the key. Remember that boxes represent the actual keys, and when a command is written within brackets, look for the command in yellow or green above a key on the keyboard.
You should see the one of following screens depending on which calculator you are using:
If you are using the TI-83 Plus, select 7:Reset.
Once you select Reset, one of the following screens will appear. The displays shown below are different because of the memory differences in the calculators.
TI-83 or TI-83 Plus Display
The calculator gives you a chance to back out if you have changed your mind.
The calculator confirms that the defaults have been reset. The second line of the TI-83 Plus display shows your current operating system version number, and it may be different than the display above.
Some of the settings are shown below in the MODE and FORMAT menus. Press the keys shown to see the screens illustrated. The highlighted selections are the factory defaults.
Return to the Home screen
Deleting All Variables
Resetting defaults restores all system variables to factory settings without deleting variables and programs in RAM. If you want to delete all variables and programs, follow the directions below.
Resetting ALL RAM or ALL MEMORY will delete all data and programs. The elipses after RAM or MEMORY indicate that a submenu will appear, that asks you to confirm the request.
Using the Y= Editor
The Y= Editor is shown in the screen below. You access the Y= editor by pressing the key. For now it is important to know how resetting the factory defaults affects whether an equation or plot is turned on or off. In Module 1 you will learn how to enter and graph equations using the editor.
Switching Graphs On and Off
The function shown in the screen on the left above, Y1 = 2x, is turned off because the equals sign is not highlighted. You can turn the function on or off by moving the cursor over the equals sign using the left arrow key and pressing . When the equals sign is highlighted, as in the screen on the right above, the function is on and it can be displayed in the Graph window.
The plots are also turned off (not highlighted) in the screen on the left above. You can turn a plot on or off by moving the cursor to the Plot using the arrow keys and then pressing . Functions and Plots that are "off" are not graphed or included in tables.
Resetting the defaults does not erase equations or plots, but it does turn them off. So after resetting the defaults, any functions or Plots you had in the calculator will still be there, but they won't appear in a graph or table until they are turned on again.
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