Matrix multiplication II: Difference between revisions

Revision as of 07:46, 25 March 2011

@@ Line 9: / Line 9: @@
    var v = b1.create('point',[2,2],{style:5,name:'v'});
    var w = b1.create('point',[-2,1],{style:5,name:'w'});
-   var va = b1.create('line',[[0,0],v],{straightFirst:false, straightLast:false, lastArrow:true});
+   var va = b1.create('arrow',[[0,0],v]);
-   var wa = b1.create('line',[[0,0],w],{straightFirst:false, straightLast:false, lastArrow:true});
+   var wa = b1.create('arrow',[[0,0],w]);
    var v2 = b1.create('point',[
@@ Line 18: / Line 18: @@
         function() {return a.Value()*w.X()+b.Value()*w.Y();},
         function() {return c.Value()*w.X()+d.Value()*w.Y();}],{style:7,name:"w'"});
-   var va2 = b1.create('line',[[0,0],v2],{straightFirst:false, straightLast:false, lastArrow:true});
+   var va2 = b1.create('arrow',[[0,0],v2],{color:'black'});
-   var wa2 = b1.create('line',[[0,0],w2],{straightFirst:false, straightLast:false, lastArrow:true});
+   var wa2 = b1.create('arrow',[[0,0],w2],{color:'black'});
-   var t = b1.create('text',[-6,-2,function(){ return '|'+b1.round(a.Value(),2)+' '+b1.round(b.Value(),2)+'|'+'<br>'+'|'+b1.round(c.Value(),2)+' '+b1.round(d.Value(),2)+'|';}]);
+   var t = b1.create('text',[-8,5,function(){ return 'Matrix=|'+b1.round(a.Value(),2)+' '+b1.round(b.Value(),2)+'|'+'<br>'+'|'+b1.round(c.Value(),2)+' '+b1.round(d.Value(),2)+'|';}]);
    b1.unsuspendUpdate();
 </jsxgraph>
 [[Category:Examples]]