Least-squares circle fitting: Difference between revisions

Revision as of 15:32, 5 November 2010

@@ Line 2: / Line 2: @@
 var brd = JXG.JSXGraph.initBoard('jxgbox',{boundingbox:[-5,5,5,-5], keepaspectratio:true});
-var i, p = [], angle, co, si;
+var i, p = [], angle, co, si, delta = 0.2;
 for (i=0;i<50;i++) {
    angle = Math.random()*2*Math.PI;
-   co = 4*Math.cos(angle);
-   si = 4*Math.sin(angle);
+   co = 4*Math.cos(angle)+delta*(Math.random()-0.5);
+   si = 4*Math.sin(angle)+delta*(Math.random()-0.5);
    p.push(brd.create('point',[co, si], {withLabel:false}));
 }