// Define the id of your board in BOARDID
JXG.Options.label.autoPosition = true;
JXG.Options.text.fontSize = 16;
JXG.Options.line.strokeWidth = 0.8;
const board = JXG.JSXGraph.initBoard(BOARDID, {
boundingbox: [-5, 5, 5, -5],
axis: true
});
var f1 = board.create('glider', [-2, 0, board.defaultAxes.x], {name:"f'"});
var f2 = board.create('glider', [2, 0, board.defaultAxes.x], {name:"f"});
var ell = board.create('ellipse', [f1, f2, [0,3]]);
var P = board.create('glider', [-1, 2, ell], {name: 'p'});
var s1 = board.create('segment', [f1,P]);
var s2 = board.create('segment', [f2,P]);
var txt = board.create('text', [0.2, 4,
() => "|pf| + |pf'| = " + P.Dist(f1).toFixed(2) + ' + ' + P.Dist(f2).toFixed(2) + ' = ' + (P.Dist(f1) + P.Dist(f2)).toFixed(2)
]);
This example is licensed under a Creative Commons Attribution 4.0 International License.
Please note that you have to mention The Center of Mobile Learning with Digital Technology in the credits.
/*
This example is licensed under a
Creative Commons Attribution 4.0 International License.
https://creativecommons.org/licenses/by/4.0/
Please note that you have to mention
The Center of Mobile Learning with Digital Technology
in the credits.
*/
const BOARDID = 'your_div_id'; // Insert your id here!
JXG.Options.label.autoPosition = true;
JXG.Options.text.fontSize = 16;
JXG.Options.line.strokeWidth = 0.8;
const board = JXG.JSXGraph.initBoard(BOARDID, {
boundingbox: [-5, 5, 5, -5],
axis: true
});
var f1 = board.create('glider', [-2, 0, board.defaultAxes.x], {name:"f'"});
var f2 = board.create('glider', [2, 0, board.defaultAxes.x], {name:"f"});
var ell = board.create('ellipse', [f1, f2, [0,3]]);
var P = board.create('glider', [-1, 2, ell], {name: 'p'});
var s1 = board.create('segment', [f1,P]);
var s2 = board.create('segment', [f2,P]);
var txt = board.create('text', [0.2, 4,
() => "|pf| + |pf'| = " + P.Dist(f1).toFixed(2) + ' + ' + P.Dist(f2).toFixed(2) + ' = ' + (P.Dist(f1) + P.Dist(f2)).toFixed(2)
]);
<div id="board-0-wrapper" class="jxgbox-wrapper " style="width: 100%; ">
<div id="board-0" class="jxgbox" style="aspect-ratio: 1 / 1; width: 100%;" data-ar="1 / 1"></div>
</div>
<script type = "text/javascript">
/*
This example is licensed under a
Creative Commons Attribution 4.0 International License.
https://creativecommons.org/licenses/by/4.0/
Please note that you have to mention
The Center of Mobile Learning with Digital Technology
in the credits.
*/
const BOARDID = 'board-0';
JXG.Options.label.autoPosition = true;
JXG.Options.text.fontSize = 16;
JXG.Options.line.strokeWidth = 0.8;
const board = JXG.JSXGraph.initBoard(BOARDID, {
boundingbox: [-5, 5, 5, -5],
axis: true
});
var f1 = board.create('glider', [-2, 0, board.defaultAxes.x], {name:"f'"});
var f2 = board.create('glider', [2, 0, board.defaultAxes.x], {name:"f"});
var ell = board.create('ellipse', [f1, f2, [0,3]]);
var P = board.create('glider', [-1, 2, ell], {name: 'p'});
var s1 = board.create('segment', [f1,P]);
var s2 = board.create('segment', [f2,P]);
var txt = board.create('text', [0.2, 4,
() => "|pf| + |pf'| = " + P.Dist(f1).toFixed(2) + ' + ' + P.Dist(f2).toFixed(2) + ' = ' + (P.Dist(f1) + P.Dist(f2)).toFixed(2)
]);
</script>
<jsxgraph width="100%" aspect-ratio="1 / 1" title="Ellipse: pin and string method" description="This construction was copied from JSXGraph examples database: http://jsxgraph.uni-bayreuth.de/share/" useGlobalJS="false">
/*
This example is licensed under a
Creative Commons Attribution 4.0 International License.
https://creativecommons.org/licenses/by/4.0/
Please note that you have to mention
The Center of Mobile Learning with Digital Technology
in the credits.
*/
JXG.Options.label.autoPosition = true;
JXG.Options.text.fontSize = 16;
JXG.Options.line.strokeWidth = 0.8;
const board = JXG.JSXGraph.initBoard(BOARDID, {
boundingbox: [-5, 5, 5, -5],
axis: true
});
var f1 = board.create('glider', [-2, 0, board.defaultAxes.x], {name:"f'"});
var f2 = board.create('glider', [2, 0, board.defaultAxes.x], {name:"f"});
var ell = board.create('ellipse', [f1, f2, [0,3]]);
var P = board.create('glider', [-1, 2, ell], {name: 'p'});
var s1 = board.create('segment', [f1,P]);
var s2 = board.create('segment', [f2,P]);
var txt = board.create('text', [0.2, 4,
() => "|pf| + |pf'| = " + P.Dist(f1).toFixed(2) + ' + ' + P.Dist(f2).toFixed(2) + ' = ' + (P.Dist(f1) + P.Dist(f2)).toFixed(2)
]);
</jsxgraph>
/*
This example is licensed under a
Creative Commons Attribution 4.0 International License.
https://creativecommons.org/licenses/by/4.0/
Please note that you have to mention
The Center of Mobile Learning with Digital Technology
in the credits.
*/
const BOARDID = 'your_div_id'; // Insert your id here!
JXG.Options.label.autoPosition = true;
JXG.Options.text.fontSize = 16;
JXG.Options.line.strokeWidth = 0.8;
const board = JXG.JSXGraph.initBoard(BOARDID, {
boundingbox: [-5, 5, 5, -5],
axis: true
});
var f1 = board.create('glider', [-2, 0, board.defaultAxes.x], {name:"f'"});
var f2 = board.create('glider', [2, 0, board.defaultAxes.x], {name:"f"});
var ell = board.create('ellipse', [f1, f2, [0,3]]);
var P = board.create('glider', [-1, 2, ell], {name: 'p'});
var s1 = board.create('segment', [f1,P]);
var s2 = board.create('segment', [f2,P]);
var txt = board.create('text', [0.2, 4,
() => "|pf| + |pf'| = " + P.Dist(f1).toFixed(2) + ' + ' + P.Dist(f2).toFixed(2) + ' = ' + (P.Dist(f1) + P.Dist(f2)).toFixed(2)
]);
<div id="board-0-wrapper" class="jxgbox-wrapper " style="width: 100%; ">
<div id="board-0" class="jxgbox" style="aspect-ratio: 1 / 1; width: 100%;" data-ar="1 / 1"></div>
</div>
<script type = "text/javascript">
/*
This example is licensed under a
Creative Commons Attribution 4.0 International License.
https://creativecommons.org/licenses/by/4.0/
Please note that you have to mention
The Center of Mobile Learning with Digital Technology
in the credits.
*/
const BOARDID = 'board-0';
JXG.Options.label.autoPosition = true;
JXG.Options.text.fontSize = 16;
JXG.Options.line.strokeWidth = 0.8;
const board = JXG.JSXGraph.initBoard(BOARDID, {
boundingbox: [-5, 5, 5, -5],
axis: true
});
var f1 = board.create('glider', [-2, 0, board.defaultAxes.x], {name:"f'"});
var f2 = board.create('glider', [2, 0, board.defaultAxes.x], {name:"f"});
var ell = board.create('ellipse', [f1, f2, [0,3]]);
var P = board.create('glider', [-1, 2, ell], {name: 'p'});
var s1 = board.create('segment', [f1,P]);
var s2 = board.create('segment', [f2,P]);
var txt = board.create('text', [0.2, 4,
() => "|pf| + |pf'| = " + P.Dist(f1).toFixed(2) + ' + ' + P.Dist(f2).toFixed(2) + ' = ' + (P.Dist(f1) + P.Dist(f2)).toFixed(2)
]);
</script>
<jsxgraph width="100%" aspect-ratio="1 / 1" title="Ellipse: pin and string method" description="This construction was copied from JSXGraph examples database: http://jsxgraph.uni-bayreuth.de/share/" useGlobalJS="false">
/*
This example is licensed under a
Creative Commons Attribution 4.0 International License.
https://creativecommons.org/licenses/by/4.0/
Please note that you have to mention
The Center of Mobile Learning with Digital Technology
in the credits.
*/
JXG.Options.label.autoPosition = true;
JXG.Options.text.fontSize = 16;
JXG.Options.line.strokeWidth = 0.8;
const board = JXG.JSXGraph.initBoard(BOARDID, {
boundingbox: [-5, 5, 5, -5],
axis: true
});
var f1 = board.create('glider', [-2, 0, board.defaultAxes.x], {name:"f'"});
var f2 = board.create('glider', [2, 0, board.defaultAxes.x], {name:"f"});
var ell = board.create('ellipse', [f1, f2, [0,3]]);
var P = board.create('glider', [-1, 2, ell], {name: 'p'});
var s1 = board.create('segment', [f1,P]);
var s2 = board.create('segment', [f2,P]);
var txt = board.create('text', [0.2, 4,
() => "|pf| + |pf'| = " + P.Dist(f1).toFixed(2) + ' + ' + P.Dist(f2).toFixed(2) + ' = ' + (P.Dist(f1) + P.Dist(f2)).toFixed(2)
]);
</jsxgraph>