Texas Instruments TI-89 Manual De Usuario
3D Graphing
388
Effect of Changing eye
Effect of Changing eye
Effect of Changing eye
Effect of Changing eye
q
theta
theta
theta
theta
The view on the Graph screen is always oriented along the viewing angle. From this
point of view, you can change
point of view, you can change
eye
q to rotate the viewing angle around the z axis.
Note:
This example increments
eye
q by 30.
z1(x,y) = (x
3
y – y
3
x) / 390
In this example eye
f
=
70
eye
q
= 20
eye
q
= 50
eye
q
= 80