Circle inversion: Difference between revisions

Revision as of 16:30, 21 April 2010

@@ Line 1: / Line 1: @@
 <jsxgraph width="600" height="600">
 brd = JXG.JSXGraph.initBoard('jxgbox',{boundingbox:[-5,5,5,-5]});
-m = brd.create('point',[0.5,0.3]);
+var m = brd.create('point',[0.5,0.3]);
-b = brd.create('point',[3,0]);
+var b = brd.create('point',[3,0]);
-c = brd.create('circle',[m,b]);
+var c = brd.create('circle',[m,b]);
-p = brd.create('point',[-4,2]);
+var p = brd.create('point',[-4,2]);
 // If p is not on c, the tangent is the polar.
-t = brd.create('tangent', [c,p], {name:'polar', withLabel:true, strokeColor:'gray'});
+var t = brd.create('tangent', [c,p], {name:'polar', withLabel:true, strokeColor:'gray', dash:2});
+var l = brd.create('line', [m,p], {name:'', withLabel:false, strokeColor:'gray', dash:2});
-i1 = brd.create('intersection', [c,t,0],{visible:false});
-i2 = brd.create('intersection', [c,t,1],{visible:false});
 </jsxgraph>