Re: Surface of Revolution

*To*: mathgroup at smc.vnet.net*Subject*: [mg20244] Re: [mg20209] Surface of Revolution*From*: "Richard Finley" <rfinley at medicine.umsmed.edu>*Date*: Fri, 8 Oct 1999 18:30:19 -0400*Sender*: owner-wri-mathgroup at wolfram.com

Chee, If you notice in the documentation, the option for RevolutionAxis is NOT an arbitrary axis but an axis through the origin, so the axis x=1 (in 2D) does not qualify. However, you can generate the same surface by simply generating the SurfaceOfRevolution of (x+1)^2 from x=1 to x=2 about the x=0 axis (y axis)...SurfaceOfRevolution[(x+1)^2,{x,1,2}] . regards, RF >>> "Chee Lim Cheung" <cheelc at mbox2.singnet.com.sg> 10/06/99 07:06PM >>> Hi Mathematica users & experts, There is a package in Mathematica which allows us to generate surfaces of revolution. It is in the context Graphics`SurfaceOfRevolution`. It is stated that a surface of revolution can be generated about any axis by setting the option RevolutionAxis. However, it is not exactly to me how to do this. For example, I would like to generate a surface of revolution of the curve y = x^2 from x = 2 to x = 3 about the axis x = 1. Anybody out there who can give me some pointers on how to go about it? Thanks Chee