Vertex equations of a quadratic function and it's inverse: Difference between revisions
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A WASSERMANN (talk | contribs) No edit summary |
A WASSERMANN (talk | contribs) No edit summary |
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var b = JXG.JSXGraph.initBoard('box1', {boundingbox: [-5, 5, 5, -5], grid:true}); | var b = JXG.JSXGraph.initBoard('box1', {boundingbox: [-5, 5, 5, -5], grid:true}); | ||
var v = b.create('point', [0,0], {name:'V'}), | var v = b.create('point', [0,0], {name:'V'}), | ||
p = b.create('point', [3,3], { | p = b.create('point', [3,3], {name:'P'}), | ||
f = b.create('functiongraph', [ | f = b.create('functiongraph', [ | ||
function(x) { | function(x) { | ||
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})(); | })(); | ||
</jsxgraph> | </jsxgraph> | ||
<jsxgraph width="300" height="300" box="box2"> | |||
(function() { | |||
var b = JXG.JSXGraph.initBoard('box2', {boundingbox: [-5, 5, 5, -5], grid:true}); | |||
var v = b.create('point', [0,0], {name:'V'}), | |||
p = b.create('point', [3,3], {name:'P'}), | |||
f = b.create('functiongraph', [ | |||
function(x) { | |||
var den = p.Y()- v.Y(), | |||
a = (p.X() - v.X()) / (den * den); | |||
return Math.sqrt((x - v.X()) / a) + v.Y(); | |||
}]); | |||
})(); | |||
</jsxgraph> | |||
[[Category:Examples]] | [[Category:Examples]] | ||
[[Category:Calculus]] | [[Category:Calculus]] | ||
[[Category:Interpolation]] | [[Category:Interpolation]] |