Animating A 3D Graph Interactively; The Viewing Orbit - Texas Instruments TITANIUM TI-89 User Manual

As the z axis rotates 90¡, its range (L10 to 10 in this example) expands to almost twice its
original length. Likewise, the x and y axes expand or contract.
From the Home Screen or a Program From the Home Screen or a Program
From the Home Screen or a Program From the Home Screen or a Program
The values are stored in the system variables
eye
or store to these variables as necessary.
@ To type f or , press 8 c j [
You can also press 2 G and use the Greek menu.

Animating a 3D Graph Interactively

Animating a 3D Graph Interactively
Animating a 3D Graph Interactively Animating a 3D Graph Interactively
After plotting any 3D graph, you can change the viewing angle interactively by using the
cursor.

The Viewing Orbit

The Viewing Orbit
The Viewing Orbit The Viewing Orbit
When using A and B to animate a graph, think of it as moving the viewing angle along
its "viewing orbit" around the graph.
Moving along this orbit can
cause the z axis to wobble
slightly during the animation.
3D Graphing
eye eye
q,
] or 8 c Ú, respectively.
F
f, and . You can access
eye
391