DMelt:Math/2 Parametric Functions
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Parametric functions
Parametric functions can be constructed using the Java class 
jhplot.FPR.
The variables "u" and "v" are parametric variables used to build "x,y,z".
To display such functions, use the canvas jhplot.HPlot3DP.
Lets us show an example of creating two parametric function:
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The output of this script is shown here
As you can see, one can overlay several functions on top of each other and set the transparency level.
Here are some examples:
