Difference between revisions of "Differential equations"
From JSXGraph Wiki
Jump to navigationJump to searchA WASSERMANN (talk | contribs) |
A WASSERMANN (talk | contribs) |
||
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