Texas Instruments Titanium TI-89 User Manual

Additional Graphing Topics 477
Note: To enter when, type it or use the CATALOG.
where:
Nested functions quickly become complex and difficult to visualize.
Using a Multi-Statement, User-Defined Function
Using a Multi-Statement, User-Defined FunctionUsing a Multi-Statement, User-Defined Function
Using a Multi-Statement, User-Defined Function
For three or more pieces, you may want to create a multi-statement, user-defined
function.
When: Use expression:
x < Mp
4 sin(x)
x
| M p and x < 0
2x + 6
x | 0
6 – x
2
In the Y= Editor:
y1(x)=when(x<0,when(x< M p,4ùsin(x),2x+6),6Nx^2)
This nested function is in effect when x<0.

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)