MathGroup Archive 2006

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: Beginner Question

Sign[Det[{c - a, b - a}]]

will return +1 or -1 according as C on the right or left of the ray
from A to B.  (And 0 if C is colinear with A and B).

  • Prev by Date: Re: derivative of cubic spline
  • Next by Date: can't pass argument to a Java method that takes a character array
  • Previous by thread: Re: Beginner Question
  • Next by thread: RE: Beginner Question