Re: Convex hull in 3D

*To*: mathgroup at smc.vnet.net*Subject*: [mg111662] Re: Convex hull in 3D*From*: Christopher Henrich <chenrich at monmouth.com>*Date*: Mon, 9 Aug 2010 05:14:45 -0400 (EDT)*Organization*: Noöspheres 'R' Us*References*: <i3gptp$35i$1@smc.vnet.net>

In article <i3gptp$35i$1 at smc.vnet.net>, "S. B. Gray" <stevebg at ROADRUNNER.COM> wrote: > I'm pretty sure that a few years ago I downloaded a function that Eric > W. wrote to compute the CH of some points in 3D. He intended it to be a > temporary solution because Mathematica has CH only for 2D. I can't find it > now > and I need it. I have only a dozen or so random points and don't need > super speed. > > Steve Gray I submitted a set of packages for multidimensionl convex polyhedra to the Wolfram Library Archive: <http://library.wolfram.com/infocenter/MathSource/7034/> I would advise that you convert your coordinates to rational numbers. Then I think it would handle the problem you describe with satisfactory speed. -- Christopher J. Henrich chenrich at monmouth.com http://www.mathinteract.com "A bad analogy is like a leaky screwdriver." -- Boon