Difference between revisions of "Differential equations"
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A WASSERMANN (talk | contribs) |
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| Line 1: | Line 1: | ||
| + | <html> | ||
| + | <form> | ||
| + | f(t,x)=<input type="text" id="odeinput"><input type=button value="ok" onclick="doIt()"> | ||
| + | </form> | ||
| + | </html> | ||
<jsxgraph width="500" height="500"> | <jsxgraph width="500" height="500"> | ||
var brd = JXG.JSXGraph.initBoard('jxgbox', {axis:true, boundingbox:[-5,5,5,-5]}); | var brd = JXG.JSXGraph.initBoard('jxgbox', {axis:true, boundingbox:[-5,5,5,-5]}); | ||
var P = brd.create('point',[0,0], {name:'x_0'}); | var P = brd.create('point',[0,0], {name:'x_0'}); | ||
| − | var f = function(t, | + | var f = function(t,xx) { |
| − | + | var x = xx[0]; | |
| + | y = 3*x; | ||
| + | |||
| + | return [y]; | ||
}; | }; | ||
| + | |||
| + | function doIt() { | ||
| + | var t = document.getElementById(odeinput).value; | ||
| + | f = new Function("t", "xx", "var x = xx[0]; var y = " + t + "; return [y]"); | ||
| + | } | ||
function ode() { | function ode() { | ||
Revision as of 11:36, 14 July 2010
