Texas Instruments TI-89 Titanium User Manual page 222

Turning the Custom Menu On and Off
When you turn on the custom menu, it replaces the normal toolbar menu. When you turn
it off, the normal menu returns. For example, from the calculator Home screen's normal
toolbar menu, press 2 ½ to toggle the custom menu on and off.
Calculator Home
screen normal toolbar
menu
You can also turn the custom menu on and off by entering
Note:
the entry line and pressing ¸.
Unless the menu has been modified, the default custom menu appears.
Menu Function
ƒ
Common variable names.
Var
„
Function names such as f(x), g(x), and f(x,y).
f(x)
...
Items related to solving equations.
Solve
†
Common units such as _m, _ft, and _l.
Unit
‡
Symbols such as #, ?, and ~.
Symbol
Calculator Home Screen
2 ¾
Custom menu
CustmOn
or in
CustmOff
219