Continuous functions: Difference between revisions
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v3 = board.createElement('line', [x3,y3],{strokeColor:'gray',dash:2,strokeWidth:1}); | v3 = board.createElement('line', [x3,y3],{strokeColor:'gray',dash:2,strokeWidth:1}); | ||
h1 = board.createElement('curve', [function(t){return t},function(t){return y1.Y();}], {strokeColor:'gray',dash:2,strokeWidth:1}); | |||
h2 = board.createElement('curve', [function(t){return t},function(t){return y2.Y();}], {strokeColor:'gray',dash:2,strokeWidth:1}); | h2 = board.createElement('curve', [function(t){return t},function(t){return y2.Y();}], {strokeColor:'gray',dash:2,strokeWidth:1}); | ||
h3 = board.createElement('curve', [function(t){return t},function(t){return y3.Y();}], {strokeColor:'gray',dash:2,strokeWidth:1}); | h3 = board.createElement('curve', [function(t){return t},function(t){return y3.Y();}], {strokeColor:'gray',dash:2,strokeWidth:1}); | ||
Line 67: | Line 68: | ||
v3 = board.createElement('line', [x3,y3],{strokeColor:'gray',dash:2,strokeWidth:1}); | v3 = board.createElement('line', [x3,y3],{strokeColor:'gray',dash:2,strokeWidth:1}); | ||
h1 = board.createElement('curve', [function(t){return t},function(t){return y1.Y();}], | |||
{strokeColor:'gray',dash:2,strokeWidth:1}); | |||
h2 = board.createElement('curve', [function(t){return t},function(t){return y2.Y();}], | h2 = board.createElement('curve', [function(t){return t},function(t){return y2.Y();}], | ||
{strokeColor:'gray',dash:2,strokeWidth:1}); | {strokeColor:'gray',dash:2,strokeWidth:1}); |
Revision as of 11:11, 17 December 2008
References
The underlying JavaScript source code
board = JXG.JSXGraph.initBoard('box', {originX: 300, originY: 250, unitX: 50, unitY: 50});
b1axisx = board.createElement('axis', [[0,0], [1,0]], {});
b1axisy = board.createElement('axis', [[0,0], [0,1]], {});
var f = function(x) {
if (x<1) {
return 0.5*x*x;
} else {
return x+1;
}
};
graph = board.createElement('curve', ['x',f, 'x'], {curveType:'graph',strokeColor:'#00ff00'});
s = board.createElement('slider', [0,-2,4,0,1,1],{name:' '});
x1 = board.createElement('glider', [-2,0,b1axisx],{name:' '});
x2 = board.createElement('point', [function(){return x1.X()-s.X();},0],{style:7,name:' '});
x3 = board.createElement('point', [function(){return x1.X()+s.X();},0],{style:7,name:' '});
y1 = board.createElement('point', [function(){return x1.X();},function(){return f(x1.X());}],{style:7,name:' '});
y2 = board.createElement('point', [function(){return x2.X();},function(){return f(x2.X());}],{style:7,name:' '});
y3 = board.createElement('point', [function(){return x3.X();},function(){return f(x3.X());}],{style:7,name:' '});
v2 = board.createElement('line', [x2,y2],{strokeColor:'gray',dash:2,strokeWidth:1});
v3 = board.createElement('line', [x3,y3],{strokeColor:'gray',dash:2,strokeWidth:1});
h1 = board.createElement('curve', [function(t){return t},function(t){return y1.Y();}],
{strokeColor:'gray',dash:2,strokeWidth:1});
h2 = board.createElement('curve', [function(t){return t},function(t){return y2.Y();}],
{strokeColor:'gray',dash:2,strokeWidth:1});
h3 = board.createElement('curve', [function(t){return t},function(t){return y3.Y();}],
{strokeColor:'gray',dash:2,strokeWidth:1});