Texas Instruments Titanium TI-89 User Manual

Programming 605
Note: From the keyboard, you can type:
>= for |
<= for {
/= for ƒ
(To get the / character, press e.)
Boolean Tests
Boolean TestsBoolean Tests
Boolean Tests
Boolean operators let you combine the results of two separate tests.
The Not Function
The Not FunctionThe Not Function
The Not Function
The
not function changes the result of a test from true to false and vice versa. For
example:
Note: If you use not from the Home screen, it is shown as ~ in the history area. For
example,
not x>2 is shown as ~(x>2).
Operator True if: Example
and Both tests are true
a>0 and a{10
or At least one test is true
a{0 or b+c>10
xor One test is true and the
other is false
a+6<b+1 xor c<d
not x>2 is true if
is false if
x
{2
x>2

Texas Instruments Titanium TI-89 Specifications

General

Display Type	LCD
Display Resolution	160 x 100 pixels
Memory	188 KB RAM, 2.7 MB Flash ROM
Type	Graphing Calculator
Display	Monochrome
Processor	Motorola 68000
Processor Speed	12 MHz
Power Source	4 AAA batteries
Connectivity	USB
Programming	TI-BASIC, Assembly
Operating System	AMS (Advanced Mathematics Software)