3D Graphing 390
Note: During rotation, the axes expand or contract to fit the screen’s width and height.
This causes some distortion as shown in the example.
z1(x,y)=(x3y–y3x) / 390
In this example,
eyeq=20 and eyef=70
eyeψ = 0
eyeψ = 45
eyeψ = 90
When eyeψ=0, the z axis runs the height of
the screen.
When eyeψ=90, the z axis runs the width of
the screen.
z=10
z=ë10
z=10 z=ë10