Texas Instruments Titanium TI-89 User Manual

3D Graphing 388
Effect of Changing eye
Effect of Changing eyeEffect of Changing eye
Effect of Changing eyeq theta
thetatheta
theta
The view on the Graph screen is always oriented along the viewing angle. From this
point of view, you can change
eyeq to rotate the viewing angle around the z axis.
Note: This example increments eyeq by 30.
z1(x,y) = (x
3
y – y
3
x) / 390
In this example eyef =
70
eye
q = 20
eye
q = 50
eye
q = 80

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)