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I have a full version of Mathematica Home Edition 9 installed on a high end desktop. I'm trying to learn how to use it and keep coming up with an error message that I cannot figure out.

I want to plot a 3D graph in cylindrical coordinates. I thoroughly know calculus 3, so the math isn't the problem. The problem is figuring out what I'm doing wrong in Mathematica. I searched many websites and found that I need to load a graphics package called ParametricPlot3D in order to get the graphics routines necessary. I copy and pasted the exact commands, and I still get the error message. Below is an exact copy & paste of what I typed and what error I got from Mathematica. Can anyone please guide me to correct this?


CylindricalPlot3D[ 9 - r^2, {r, 0, 3}, {theta, 0, 2*Pi}]
Get::noopen: Cannot open Graphics`ParametricPlot3D.

Needs::nocont: "Context \!\(\"Graphics`ParametricPlot3D`\"\) was not created when 
Needs was evaluated. " 

I have also tried a different way to load the graphics routines, and here's the message I'm getting:

<< Graphics``ParametricPlot3D`

CylindricalPlot3D[ 9 - r^2, {r, 0, 3}, {theta, 0, 2*Pi}]
Get::noopen: "Cannot open \!\(\"Graphics`ParametricPlot3D`\"\). " 

I realize that the character was missing from the ends of theGraphics` statement, but this text editor won't let me put one at the end and keep that same character at the beginning. Trust me, it is there.

I suspect it might be some sort of setting I have to enable, or maybe a directory path that is incorrect, or even I need to download graphics routines. If someone can point me in the right direction, I'd be truly grateful.

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closed as off-topic by MarcoB, m_goldberg, RunnyKine, Louis, Yves Klett Apr 25 at 9:33

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "This question arises due to a simple mistake such as a trivial syntax error, incorrect capitalization, spelling mistake, or other typographical error and is unlikely to help any future visitors, or else it is easily found in the documentation." – MarcoB, m_goldberg, RunnyKine, Louis, Yves Klett
If this question can be reworded to fit the rules in the help center, please edit the question.

The functionality of the old CylindricalPlot3D is included in the built-in RevolutionPlot3D

RevolutionPlot3D[9 - r^2, {r, 0, 3}, {θ, 0, 2*Pi}]

enter image description here

This is in the documentation here (I found it by highlighting CylindricalPlot3D and pressing F1).

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