Difference between revisions of "Antiderivative"

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Line 11: Line 11:
 
var int = brd.create('integral',[[function(){return p[0].X();},function(){return s.X();}],plot],{});
 
var int = brd.create('integral',[[function(){return p[0].X();},function(){return s.X();}],plot],{});
  
var F = brd.create('point',[function(){return s.X();}, function(){return brd.I([p[0].X(),s.X()],f);}],{trace:true,name:'F',fillColor:'#0000aa',strokeColor:'#0000aa',face:'[]'});
+
var F = brd.create('point',[function(){return s.X();}, function(){return brd.I([p[0].X(),s.X()],f);}],
 +
                  {trace:true,name:'F',fillColor:'#0000aa',strokeColor:'#0000aa',face:'[]'});
 
</jsxgraph>
 
</jsxgraph>
  
 
===The underlying JavaScript code===
 
===The underlying JavaScript code===
 
<source lang="javascript">
 
<source lang="javascript">
 +
var brd = JXG.JSXGraph.initBoard('box', {boundingbox:[-3,10,3,-3],axis:true});
 +
var p = [];
 +
p.push(brd.create('point',[-2,(Math.random()-0.2)*5],{name:''}));
 +
p.push(brd.create('point',[0,(Math.random()-0.2)*5],{name:''}));
 +
p.push(brd.create('point',[2.2,(Math.random()-0.2)*5],{name:''}));
 +
 +
var f = brd.lagrangePolynomial(p);
 +
var plot = brd.create('functiongraph',[f,-3,3]);
 +
var s = brd.create('glider',[-2,0,plot],{name:'drag me'});
 +
var int = brd.create('integral',[[function(){return p[0].X();},function(){return s.X();}],plot],{});
 +
 +
var F = brd.create('point',[function(){return s.X();}, function(){return brd.I([p[0].X(),s.X()],f);}],
 +
                  {trace:true,name:'F',fillColor:'#0000aa',strokeColor:'#0000aa',face:'[]'});
 
</source>
 
</source>
  
 
[[Category:Calculus]]
 
[[Category:Calculus]]
 
[[Category:Examples]]
 
[[Category:Examples]]

Revision as of 12:16, 14 May 2010

The underlying JavaScript code

var brd = JXG.JSXGraph.initBoard('box', {boundingbox:[-3,10,3,-3],axis:true});
var p = [];
p.push(brd.create('point',[-2,(Math.random()-0.2)*5],{name:''}));
p.push(brd.create('point',[0,(Math.random()-0.2)*5],{name:''}));
p.push(brd.create('point',[2.2,(Math.random()-0.2)*5],{name:''}));

var f = brd.lagrangePolynomial(p);
var plot = brd.create('functiongraph',[f,-3,3]);
var s = brd.create('glider',[-2,0,plot],{name:'drag me'});
var int = brd.create('integral',[[function(){return p[0].X();},function(){return s.X();}],plot],{});

var F = brd.create('point',[function(){return s.X();}, function(){return brd.I([p[0].X(),s.X()],f);}],
                   {trace:true,name:'F',fillColor:'#0000aa',strokeColor:'#0000aa',face:'[]'});