Newton's root finding method: 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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| Line 8: | Line 8: | ||
<td> | <td> | ||
<form> | <form> | ||
<input style="border:none; background-color:#efefef;padding:5px;margin-left:2px;" type="text" | <input style="border:none; background-color:#efefef;padding:5px;margin-left:2px;" type="text" id="graphterm" value="x*x" size="40"/> | ||
<input type="button" value="set function term" onClick="newGraph(document.getElementById('graphterm').value)">; | |||
</form> | </form> | ||
</td> | </td> | ||
| Line 14: | Line 15: | ||
<script type="text/javascript"> | <script type="text/javascript"> | ||
// Initial function term | // Initial function term | ||
function term(x) { return x*x; } | var term; | ||
//function term(x) { return x*x; } | |||
// Recursion depth | // Recursion depth | ||
var steps = 11; | var steps = 11; | ||
| Line 33: | Line 35: | ||
var g = board.create('functiongraph', [function(x){return graph(x);}],{strokeWidth: 2, dash:0}); | var g = board.create('functiongraph', [function(x){return graph(x);}],{strokeWidth: 2, dash:0}); | ||
var x = board.create('glider',[s,0,ax], {name: 'x_{0}', strokeColor: 'magenta', fillColor: 'yellow'}); | var x = board.create('glider',[s,0,ax], {name: 'x_{0}', strokeColor: 'magenta', fillColor: 'yellow'}); | ||
function graph(x) { return term(x); } | |||
//function graph(x) { return term(x); } | |||
newGraph(document.getElementById('graphterm').value); | |||
newton(x,steps); | newton(x,steps); | ||
function xval(board) { | function xval(board) { | ||
Revision as of 14:05, 3 February 2010
xo is the start value. Drag it. You may change the function term here:
