3D Graphing
371
For example, consider a saddle shape z1(x,y) = (x
2
N
y
2
) / 3. The following graph shows
the view looking down the y axis.
Now look at the same shape at 10
¡
from the x axis (eye
q
= 10).
Note:
To cut away the front of the saddle in this example, set
xmax=0
to show only
negative x values.
Example of an “Off the Curve” Cursor
Although the cursor can move only along a grid wire, you will see many cases where the
cursor does not appear to be on the 3D surface at all. This occurs when the z axis is too
short to show
z(x,y)
for the corresponding x and y values.
You can move the cursor so
that it does not appear to be
on a grid point.
If you cut away the front side,
you can see the cursor is
actually on a grid point on the
hidden back side.
Summary of Contents for Titanium TI-89
Page 9: ...Getting Started 6 TI 89 Titanium keys Ë Ì Í Ê ...
Page 34: ...Getting Started 31 2 or D 2 B u s i n e s s D B D B Press Result ...
Page 43: ...Getting Started 40 3 0 D B D D B D Press Result ...
Page 44: ...Getting Started 41 D 2 0 0 2 D B Scroll down to October and press Press Result ...
Page 58: ...Getting Started 55 Example Set split screen mode to TOP BOTTOM Press Result 3 B D ...
Page 70: ...Getting Started 67 ...
Page 175: ...Operating the Calculator 172 From the Keyboard ...
Page 456: ...Tables 453 ...
Page 527: ...Data Matrix Editor 524 ...
