Secant and tangent: Difference between revisions

Revision as of 10:43, 16 January 2009

@@ Line 41: / Line 41: @@
        function(){ return polynomial(q.X()+Math.max(s.X(),0.01));}], {style:7});
 e = board.createElement('point', [function(){ return q.X()-q2.X();},
-       function(){ return q.Y()-q2.Y();}], {style:7});
+       function(){ return (q.Y()-q2.Y())/(q.X()-q2.X());}], {style:7});
 line = board.createElement('line',[q,q2],{strokeColor:'#ff0000'});
 board.unsuspendUpdate();