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Re: Intersection of line and a surface of revolution - a problem with

  • To: mathgroup at smc.vnet.net
  • Subject: [mg102623] Re: Intersection of line and a surface of revolution - a problem with
  • From: gudi <mathma18 at hotmail.com>
  • Date: Mon, 17 Aug 2009 04:03:26 -0400 (EDT)
  • References: <h65vcp$emh$1@smc.vnet.net>

On Aug 15, 2:33 pm, Bob F <deepyog... at gmail.com> wrote:

> Can someone explain why there is such a difference in the observed

> sr3 = RevolutionPlot3D[1/2 - x^2 + x^4/2, {x, 0.05, 2.4},..

since radius r^2 = x^2 + y^2, it is better to use symbol r to drive home
the fact that x is a resolved component of r, although any symbol works
just the same, as in:

sr3 = RevolutionPlot3D[1/2 - r^2 + r^4/2, {r, 0.05, 2.4}, ...

Narasimham





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