Difference between revisions of "Power series - pointwise"

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(Created page with "<jsxgraph width="600" height="600"> var board = JXG.JSXGraph.initBoard('jxgbox', {boundingbox:[-8,8,8,-8], axis:true}); var f, curve; // global objects var p = board.create('...")
 
Line 1: Line 1:
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nth-coefficient: <input type="text" id="input" value="1 / factorial(n)">
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<input type="button" value="clear all" onClick="clearAll()">
 +
 
<jsxgraph width="600" height="600">
 
<jsxgraph width="600" height="600">
 
var board = JXG.JSXGraph.initBoard('jxgbox', {boundingbox:[-8,8,8,-8], axis:true});
 
var board = JXG.JSXGraph.initBoard('jxgbox', {boundingbox:[-8,8,8,-8], axis:true});
var f, curve; // global objects
 
  
var p = board.create('glider', [1, 0, board.defaultAxes.x]);
+
var p = board.create('glider', [0, 0, board.defaultAxes.x] , {name: 'x'});
 +
var q = board.create('point', [0, 0], {name: '', color: 'blue', trace: true});
 +
p.on('up', function(evt) {
 +
 
 +
  var x, n, m = 50;
 +
  var txtraw = document.getElementById('input').value;
 +
  var a_n = board.jc.snippet(txtraw, true, 'n', true);
 +
 
 +
  var s = 0;
 +
  x = p.X();
 +
  for (n = 0; n < m; n++) {
 +
    s += a_n(n) * Math.pow(x, n);
 +
  }
 +
  q.moveTo([x, s], 0);
 +
});
 +
 
 
</jsxgraph>
 
</jsxgraph>

Revision as of 09:08, 7 January 2019

nth-coefficient: <input type="text" id="input" value="1 / factorial(n)"> <input type="button" value="clear all" onClick="clearAll()">