fix characters

Author: Francesco Noya

Clipper/src/de/lighti/clipper/Point.java

@@ -88,10 +88,10 @@ static boolean arePointsClose(Point<? extends Number> pt1, Point<? extends Numbe
 
     static double distanceFromLineSqrd(Point<? extends Number> pt, Point<? extends Number> ln1, Point<? extends Number> ln2 ) {
         //The equation of a line in general form (Ax + By + C = 0)
-        //given 2 points (x�,y�) & (x�,y�) is ...
-        //(y� - y�)x + (x� - x�)y + (y� - y�)x� - (x� - x�)y� = 0
-        //A = (y� - y�); B = (x� - x�); C = (y� - y�)x� - (x� - x�)y�
-        //perpendicular distance of point (x�,y�) = (Ax� + By� + C)/Sqrt(A� + B�)
+        //given 2 points (x¹,y¹) & (x²,y²) is ...
+        //(y¹ - y²)x + (x² - x¹)y + (y² - y¹)x¹ - (x² - x¹)y¹ = 0
+        //A = (y¹ - y²); B = (x² - x¹); C = (y² - y¹)x¹ - (x² - x¹)y¹
+        //perpendicular distance of point (x³,y³) = (Ax³ + By³ + C)/Sqrt(A² + B²)
         //see http://en.wikipedia.org/wiki/Perpendicular_distance
         final double A = ln1.y.doubleValue() - ln2.y.doubleValue();
         final double B = ln2.x.doubleValue() - ln1.x.doubleValue();