Re(4): Clockwise or Counter-clockwise

Given 3 2d non-colinear points in sequence there's no such thing as convex or concave.

I think you mean to say that they form a triangle, and all triangles are convex.

Comment on Re(4): Clockwise or Counter-clockwise

Replies are listed 'Best First'.
Re: Re(4): Clockwise or Counter-clockwise by thor (Priest) on Feb 19, 2003 at 16:14 UTC
I think you mean to say that they form a triangle, and all triangles are convex. That is to say that 3 points taken in isolation form a triangle. (all the caveats about non-colinearity apply) Three points on a general 2-D surface will be connected in an ordered fashion with a line (think connect the dots). thor	[reply]