Difference between revisions of "Even simpler function plotter"

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Line 13: Line 13:
 
   board.create('functiongraph',[f]);
 
   board.create('functiongraph',[f]);
 
}
 
}
function clearAll(board) {
+
function clearAll() {
 
     JXG.JSXGraph.freeBoard(board);
 
     JXG.JSXGraph.freeBoard(board);
 
     board = JXG.JSXGraph.initBoard('jxgbox', {boundingbox:[-5,8,8,-5], axis:true});
 
     board = JXG.JSXGraph.initBoard('jxgbox', {boundingbox:[-5,8,8,-5], axis:true});

Revision as of 18:46, 22 March 2010

The underlying JavaScript code

var board = JXG.JSXGraph.initBoard('jxgbox', {boundingbox:[-5,8,8,-5], axis:true});

function plotter() {
  var t = board.algebra.geonext2JS(document.getElementById('input').value);
  var f = new Function('x','var y = '+t+'; return y;');
  board.create('functiongraph',[f]);
}
function clearAll(board) {
    JXG.JSXGraph.freeBoard(board);
    board = JXG.JSXGraph.initBoard('jxgbox', {boundingbox:[-5,8,8,-5], axis:true});
}