Texas Instruments Titanium TI-89 User Manual

Activities 768
6. In the Y=Editor, press:
8 Í
and set the Graph Format variables to:
Axes= ON
Labels= ON
Style= HIDDEN SURFACE
Note:
Calculating and drawing the graph
takes about three minutes.
7. Graph the modulus surface.
The 3D graph is used to visually display a
picture of the roots where the surface
touches the
xy plane.
8. Use the Trace tool to explore the function
values at
x=1 and y=0.
9. Use the Trace tool to explore the function
values at
x=0 and y=1.

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)