Parabola II: 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 par = board.create('parabola', [f, l]); | var par = board.create('parabola', [f, l]); | ||
var P = board.create('glider', [ | var P = board.create('glider', [2, 2, par], {name: 'P'}); | ||
var s1 = board.create('segment', [f,P]); | var s1 = board.create('segment', [f,P]); | ||
var q = board.create('point', [()=>c.X(), ()=>P.Y()], {name:'q'}); | |||
var s2 = board.create('segment', [q, P]); | |||
var txt = board.create('text', [0.2, 4, () => "|Pf| + |Pq| = " + P.Dist(f).toFixed(2) + ' + ' + P.Dist(q).toFixed(2) + ' = ' + (P.Dist(f) + P.Dist(q)).toFixed(2)]); | |||
</jsxgraph> | </jsxgraph> | ||
