Jag wrote: On Thu, 2002-12-12 at 13:56, Jot Powers wrote: [snip spoiler space > > I will preface with a small math lesson: > > > > 1 point defines a point > > 2 points defines a line > > 3 points defines a plane > > 4 points can define a space > > If 4 points 'can' define a space, then I believe 3 points 'can' but > don't necessarily define a plane. Good point:) Two distinct points determine a line, 3 non collinear points determine a plane, 4 non coplanar points determine a space. Sorry I didn't catch that before.