Texas Instruments TITANIUM TI-89 - Manual (Page 227)

Calculator Home Screen 227
Evaluating a Function Evaluating a Function Evaluating a Function Evaluating a Function
Displaying and Editing a Function Definition Displaying and Editing a Function Definition Displaying and Editing a Function Definition Displaying and Editing a Function Definition
You can use a user-defined function just as
you would any other function. Evaluate it by
itself or include it in another expression.
To: Do this:
Display a list of all
user-defined functions Press
2 °
to display the VAR-LINK
screen. You may need to use the
„
View toolbar
menu to specify the Function variable type. (Refer
to Memory and Variable Management.)
– or –
Press:
@
½
†
Display a list of Flash
application functions Press:
@
½
…