Texas Instruments TI-89 Titanium User Manual

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

Texas Instruments TI-89 Titanium Specifications

General

Display Type	LCD
Display Resolution	160 x 100 pixels
CPU	Motorola 68000
CPU Speed	16 MHz
RAM	256 KB
Flash ROM	2.7 MB
Programming Language	TI-BASIC, Assembly
Power Source	4 AAA batteries
Connectivity	I/O port
Dimensions	7.5 x 3.5 x 1 inches