Update sin_sign.js

make-github-pseudonymous-again · Jun 8, 2014 · fa3aa59 · fa3aa59
1 parent e28c23a
commit fa3aa59
Showing 1 changed file with 5 additions and 4 deletions.
diff --git a/js/src/2d/sin_sign.js b/js/src/2d/sin_sign.js
@@ -1,8 +1,9 @@
 
 /**
- * Computes the cross product of _ab_ and _ac_,
- * can be interpreted as the sinus sign in a "right-handed" coordinate system
- * (i.e. clockwise angle values).
+ * Computes the cross product of vectors _ab_ and _ac_.
+ * Can be interpreted as the sinus sign in a "right-handed"
+ * coordinate system (i.e. clockwise angle values).
+ * sin_sign(a, b, c) > 0 iff point c 'lies to the left' of segment _ab_. 
  * 
  * <p>
  * Originally implemented as
@@ -29,4 +30,4 @@ var sin_sign = function(a, b, c){
 };
 
 
-exports.sin_sign = sin_sign;
+exports.sin_sign = sin_sign;