Difference between revisions of "Trigonometric functions"
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Jump to navigationJump to searchA WASSERMANN (talk | contribs) |
A WASSERMANN (talk | contribs) |
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var p4 = brd.createElement('point',[0.0,function(){return p2.Y();}],{visible:false,name:'',withLabel:false}); | var p4 = brd.createElement('point',[0.0,function(){return p2.Y();}],{visible:false,name:'',withLabel:false}); | ||
| − | brd.createElement('line',[p0,p2],{straightFirst:false,straightLast:false,strokeColor:'black'}); | + | brd.createElement('line',[p0,p2],{straightFirst:false,straightLast:false,strokeColor:'black'}); // Hypotenuse |
| − | brd.createElement('line',[p2,p3],{straightFirst:false,straightLast:false,strokeColor:'red'}); | + | brd.createElement('line',[p2,p3],{straightFirst:false,straightLast:false,strokeColor:'red'}); // sin |
| − | brd.createElement('line',[p2,p4],{straightFirst:false,straightLast:false,strokeColor:'red'}); | + | brd.createElement('line',[p2,p4],{straightFirst:false,straightLast:false,strokeColor:'red'}); // cos |
var t = brd.createElement('tangent',[p2],{visible:false}); | var t = brd.createElement('tangent',[p2],{visible:false}); | ||
var p5 = brd.createElement('point',[brd.intersectionFunc(t,ax,0)],{visible:false,name:'',withLabel:false}); | var p5 = brd.createElement('point',[brd.intersectionFunc(t,ax,0)],{visible:false,name:'',withLabel:false}); | ||
var p6 = brd.createElement('point',[brd.intersectionFunc(t,ay,0)],{visible:false,name:'',withLabel:false}); | var p6 = brd.createElement('point',[brd.intersectionFunc(t,ay,0)],{visible:false,name:'',withLabel:false}); | ||
| − | brd.createElement('line',[p5,p6],{straightFirst:false,straightLast:false}); | + | brd.createElement('line',[p5,p6],{straightFirst:false,straightLast:false}); // tan + cot |
| − | brd.createElement('line',[p0,p6],{straightFirst:false,straightLast:false,strokeColor:'green'}); | + | brd.createElement('line',[p0,p6],{straightFirst:false,straightLast:false,strokeColor:'green'}); // csc |
| − | brd.createElement('line',[p0,p5],{straightFirst:false,straightLast:false,strokeColor:'green'}); | + | brd.createElement('line',[p0,p5],{straightFirst:false,straightLast:false,strokeColor:'green'}); // sec |
brd.createElement('text',[ | brd.createElement('text',[ | ||
| − | function(){return (p0.X()+p2. | + | function(){return (p0.X()+p2.X())*0.5;}, |
| − | function(){return (p0. | + | function(){return (p0.Y()+p2.Y())*0.5;}, |
'1'],{}); | '1'],{}); | ||
| + | |||
| + | brd.createElement('text',[ | ||
| + | function(){return (p0.X()+p4.X())*0.5;}, | ||
| + | function(){return (p0.Y()+p4.Y())*0.5;}, | ||
| + | 'cos'],{}); | ||
| + | |||
