Re: a newbie problem with 3d graphing

*To*: mathgroup at smc.vnet.net*Subject*: [mg25813] Re: a newbie problem with 3d graphing*From*: Bernd Brandt <bernd at bio.vu.nl>*Date*: Sat, 28 Oct 2000 01:41:06 -0400 (EDT)*Organization*: VU Biology, Amsterdam, The Netherlands*References*: <8t65hh$ej1@smc.vnet.net>*Sender*: owner-wri-mathgroup at wolfram.com

Hi Tom The following works: << Graphics`SurfaceOfRevolution` f[x_] := (1 - x^2)^0.5 SurfaceOfRevolution[f[x], {x, -0.5, 0.5}, RevolutionAxis -> {0, 0, 1}, PlotPoints -> 20] Regards, Bernd tom wrote: > I have this formula: y(x)=(1-x^2)^0.5. , from a(-0.5) to b(0.5) > > I want to rotate this line along the x-axis. How do I do this ? > > anybody help me ? > > tom > reoccuring dreams