3D Graphing 406
Note: These examples use the same x, y, and z Window variable values as a ZoomStd
viewing cube. If you use
ZoomStd, press Z to look down the z axis.
Notes About Implicit Plots
Notes About Implicit PlotsNotes About Implicit Plots
Notes About Implicit Plots
For an implicit plot:
•The
ncontour Window variable has no affect. Only the z=0 contour is drawn,
regardless of the value of ncontour. The displayed plot shows where the implicit form
intersects the xy plane.
• You can use the cursor keys to animate the plot.
• You cannot trace (…) the implicit plot itself. However, you can trace the unseen wire
frame graph of the 3D equation.
• It may take awhile to evaluate the equation initially.
• Because of possible long evaluation times, you first may want to experiment with
your 3D equation by using Style=WIRE FRAME. The evaluation time is much
shorter. Then, after you’re sure you have the correct Window variable values, set
Style=IMPLICIT PLOT.
8
F
Example: Implicit Plot of a More Complicated
Example: Implicit Plot of a More Complicated Example: Implicit Plot of a More Complicated
Example: Implicit Plot of a More Complicated
Equation
EquationEquation
Equation
You can use the IMPLICIT PLOT graph format style to plot and animate a complicated
equation that cannot be graphed otherwise. Although it may take a long time to evaluate
such a graph, the visual results can justify the time required.
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