Texas Instruments TI-89 Manual Book page 319

Output Commands
Note: In a program, simply
performing a calculation
does not display the result.
You must use an output
command.
Tip: After Disp and Output ,
the program immediately
continues. You may want to
add a Pause command.
Graphical User
Interface
Commands
Tip: When you run a
program that sets up a
custom toolbar, that toolbar
is still available even after
the program has stopped.
Note: Request and Text
are stand-alone commands
that can also be used
outside of a dialog box or
toolbar program block.
302 Chapter 17: Programming
Command Description
ClrZO Clears the Program I/O screen.
Disp Displays an expression or string on the Program I/O
screen.
the Program I/O screen without displaying
additional information.
DispG Displays the current contents of the Graph screen.
DispHome Displays the current contents of the Home screen.
DispTbl Displays the current contents of the Table screen.
Output Displays an expression or string starting at specified
coordinates on the Program I/O screen.
Format Formats the way in which numeric information is
displayed.
Pause Suspends program execution until the user presses
¸. Optionally, you can display an expression
during the pause. A pause lets users read your
output and decide when they are ready to continue.
Text Displays a dialog box that contains a specified
character string.
Command Description
Defines a program block (consisting of
Dialog...
EndDlog Request
Defines a program block (consisting of
Toolbar...
etc., commands) that replaces the toolbar menus.
EndTbar
The redefined toolbar is in effect only while the
program is running and only until the user selects an
item. Then the original toolbar is redisplayed.
Activates or removes a custom toolbar.
CustmOn...
CustmOff
Defines a program block that displays a custom
Custom...
toolbar when the user presses 2 ¾. That
EndCustm
toolbar remains in effect until the user presses
2 ¾ again or changes applications.
Displays a drop-down menu within a dialog box.
DropDown
Displays a menu item for a redefined toolbar.
Item
Creates an input box within a dialog box.
Request
Displays a character string within a dialog box.
Text
Displays the title of a dialog box or a menu title
Title
within a toolbar.
Disp can also display the current contents of
, etc., commands) that displays a dialog box.
,
Title
, ,
Title Item