Texas Instruments TI-89 Manuale Utente

Operating the Calculator

 187

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Press the number or letter for that setting.

 To cancel a menu and return to the 

 dialog box without making a 

selection, press 

N.

4. Change other mode settings, if necessary.

5. When you finish all your changes, press 

¸ to save the changes and exit the 

dialog box.

 If you press 

N instead of ¸ to exit the 

 dialog box, any mode 

changes you made will be canceled.

Overview of the Modes

Overview of the Modes

Overview of the Modes

Overview of the Modes

 For detailed information about a particular mode, look in the applicable section of 

this guidebook.

Graph

Type of graphs to plot: FUNCTION, PARAMETRIC, 
POLAR, SEQUENCE, 3D, or DE.  

Current Folder

Folder used to store and recall variables. Unless you 
have created additional folders, only the MAIN folder is 
available. Refer to “Using Folders to Store Independent 
Sets of Variables” in Calculator Home Screen. 

Display Digits

Maximum number of digits (FLOAT) or fixed number of 
decimal places (FIX) displayed in a floating-point result. 
Regardless of the setting, the total number of displayed 
digits in a floating-point result cannot exceed 12. 

Angle

Units in which angle values are interpreted and displayed: 
RADIAN, DEGREE or GRADIAN.