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| | Mit Hilfe des Programmpakets JSXGraph (siehe http://jsxgraph.uni-bayreuth.de/wp/) können komplexe, interaktive Grafiken nur mit Hilfe von JavaScript in Webseiten integriert werden. Hier ein Beispiel zur Darstellung der Trigonometrischen Funktionen (der rote Punkt kann mit der Maus bewegt werden!): | | Mit Hilfe des Programmpakets JSXGraph (siehe http://jsxgraph.uni-bayreuth.de/wp/) können komplexe, interaktive Grafiken nur mit Hilfe von JavaScript in Webseiten integriert werden. Hier ein Beispiel zur Darstellung der Trigonometrischen Funktionen (der rote Punkt kann mit der Maus bewegt werden!): |
| - | <google></google>
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| | <jsxgraph width="600" height="600" box="box"> | | <jsxgraph width="600" height="600" box="box"> |
| - | var brd = JXG.JSXGraph.initBoard('box', {originX: 300, originY: 300, grid:true, unitX: 100, unitY: 100});
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| - | var ax = brd.createElement('line',[[0,0],[1,0]],{visible:false});
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| - | var ay = brd.createElement('line',[[0,0],[0,1]],{visible:false});
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| - | var p0 = brd.createElement('point',[0,0],{fixed:true,visible:false});
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| - | var p1 = brd.createElement('point',[1,0],{name:'',visible:false,fixed:true});
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| - | var c = brd.createElement('circle',[p0,p1],{dash:2,strokeWidth:1,strokeOpacity:0.6});
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| - | var p2 = brd.createElement('glider',[0.4,1.0,c],{name:'',withLabel:false});
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| - | var p3 = brd.createElement('point',[function(){return p2.X();},0.0],{visible:false,name:'',withLabel:false});
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| - | var p4 = brd.createElement('point',[0.0,function(){return p2.Y();}],{visible:false,name:'',withLabel:false});
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| - | brd.createElement('line',[p0,p2],{straightFirst:false,straightLast:false,strokeColor:'black'}); // Hypotenuse
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| - | brd.createElement('line',[p2,p3],{straightFirst:false,straightLast:false,strokeColor:'red'}); // sin
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| - | brd.createElement('line',[p2,p4],{straightFirst:false,straightLast:false,strokeColor:'red'}); // cos
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| - | var t = brd.createElement('tangent',[p2],{visible:false});
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| - | var p5 = brd.createElement('point',[brd.intersectionFunc(t,ax,0)],{visible:false,name:'',withLabel:false});
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| - | var p6 = brd.createElement('point',[brd.intersectionFunc(t,ay,0)],{visible:false,name:'',withLabel:false});
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| - | brd.createElement('line',[p5,p6],{straightFirst:false,straightLast:false}); // tan + cot
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| - | brd.createElement('line',[p0,p6],{straightFirst:false,straightLast:false,strokeColor:'green'}); // csc
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| - | brd.createElement('line',[p0,p5],{straightFirst:false,straightLast:false,strokeColor:'green'}); // sec
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| - | brd.createElement('text',[
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| - | function(){return (p0.X()+p2.X())*0.5;},
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| - | function(){return (p0.Y()+p2.Y())*0.5;},
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| - | '1'],{});
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| - | brd.createElement('text',[
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| - | function(){return (p2.X()+p4.X())*0.3;},
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| - | function(){return (p2.Y()+p4.Y())*0.5;},
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| - | 'cos'],{});
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| - | brd.createElement('text',[
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| - | function(){return (p2.X()+p3.X())*0.5;},
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| - | function(){return (p2.Y()+p3.Y())*0.5;},
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| - | 'sin'],{});
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| - | brd.createElement('text',[
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| - | function(){return 0.1+(p2.X()+p5.X())*0.5;},
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| - | function(){return 0.1+(p2.Y()+p5.Y())*0.5;},
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| - | 'tan'],{});
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| - | brd.createElement('text',[
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| - | function(){return 0.1+(p2.X()+p6.X())*0.5;},
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| - | function(){return 0.1+(p2.Y()+p6.Y())*0.5;},
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| - | 'cot'],{});
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| - | brd.createElement('text',[
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| - | function(){return -0.2+(p0.X()+p6.X())*0.5;},
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| - | function(){return (p0.Y()+p6.Y())*0.5;},
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| - | 'csc'],{});
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| | | | |
| - | brd.createElement('text',[
| + | ; |
| - | function(){return (p0.X()+p5.X())*0.5;},
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| - | function(){return (p0.Y()+p5.Y())*0.5;},
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| - | 'sec'],{});
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| | </jsxgraph> | | </jsxgraph> |
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