| Author |
Comment/Response |
Bill Simpson
|
 10/18/12 5:22pm
This describes how to set up the problem
http://en.wikipedia.org/wiki/Solid_of_revolution
This shows how to use the setup on that page for the rotation around the x axis.
In[1]:= Pi*Integrate[Abs[(x^2-4x)^2-0^2],{x,0,4}]
Out[1]= (512*Pi)/15
Using the Wiki page and this example you should be able to figure out how to do this around the y axis.
Please check this carefully to make certain I have not made any mistakes.
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