Even simpler function plotter - Revision history

A WASSERMANN at 10:58, 21 January 2019

2019-01-21T10:58:17Z

← Older revision		Revision as of 10:58, 21 January 2019
Line 36:		Line 36:
	function addSlopeInfo() {		function addSlopeInfo() {
	if (JXG.isFunction(f)) {		if (JXG.isFunction(f)) {
			var txtraw = document.getElementById('input').value;
	board.suspendUpdate();		board.suspendUpdate();
	var q = board.create('glider', [2, 1, curve], {withLabel:false});		var q = board.create('glider', [2, 1, curve], {withLabel:false});
Line 114:		Line 115:
	function addSlopeInfo() {		function addSlopeInfo() {
	if (JXG.isFunction(f)) {		if (JXG.isFunction(f)) {
			var txtraw = document.getElementById('input').value;
	board.suspendUpdate();		board.suspendUpdate();
	var q = board.create('glider', [2, 1, curve], {withLabel:false});		var q = board.create('glider', [2, 1, curve], {withLabel:false});

2019-01-21T10:56:19Z

@@ Line 3: / Line 3: @@
 <input type="button" value="plot" onClick="plotter()">
 <input type="button" value="clear all" onClick="clearAll()">
 <input type="button" value="add tangent" onClick="addTangent()">
 <input type="button" value="add Derivative" onClick="addDerivative()">
@@ Line 24: / Line 25: @@
+                 }
                ],{name:txtraw, withLabel:true});
+}
@@ Line 38: / Line 32: @@
      f = null;
      curve = null;
+}
@@ Line 102: / Line 110: @@
      f = null;
      curve = null;
+}

2013-02-20T15:21:03Z

← Older revision		Revision as of 15:21, 20 February 2013
Line 13:		Line 13:
	function plotter() {		function plotter() {
	var txtraw = document.getElementById('input').value;		var txtraw = document.getElementById('input').value;
	~~// var txt = JXG.GeonextParser.geonext2JS(txtraw);~~
	~~// f = new Function('x','var y = '+txt+'; return y;');~~
	f = board.jc.snippet(txtraw, true, 'x', true);		f = board.jc.snippet(txtraw, true, 'x', true);
	curve = board.create('functiongraph',[f,		curve = board.create('functiongraph',[f,
Line 79:		Line 77:
	function plotter() {		function plotter() {
	var txtraw = document.getElementById('input').value;		var txtraw = document.getElementById('input').value;
	~~// var txt = JXG.GeonextParser.geonext2JS(txtraw);~~
	~~// f = new Function('x','var y = '+txt+'; return y;');~~
	f = board.jc.snippet(txtraw, true, 'x', true);		f = board.jc.snippet(txtraw, true, 'x', true);
	curve = board.create('functiongraph',[f,		curve = board.create('functiongraph',[f,

2013-02-20T15:20:40Z

← Older revision		Revision as of 15:20, 20 February 2013
Line 13:		Line 13:
	function plotter() {		function plotter() {
	var txtraw = document.getElementById('input').value;		var txtraw = document.getElementById('input').value;
	var txt = JXG.GeonextParser.geonext2JS(txtraw);		// var txt = JXG.GeonextParser.geonext2JS(txtraw);
	f = new Function('x','var y = '+txt+'; return y;');		// f = new Function('x','var y = '+txt+'; return y;');
			f = board.jc.snippet(txtraw, true, 'x', true);
	curve = board.create('functiongraph',[f,		curve = board.create('functiongraph',[f,
	function(){		function(){
Line 78:		Line 79:
	function plotter() {		function plotter() {
	var txtraw = document.getElementById('input').value;		var txtraw = document.getElementById('input').value;
	var txt = JXG.GeonextParser.geonext2JS(txtraw);		// var txt = JXG.GeonextParser.geonext2JS(txtraw);
	f = new Function('x','var y = '+txt+'; return y;');		// f = new Function('x','var y = '+txt+'; return y;');
			f = board.jc.snippet(txtraw, true, 'x', true);
	curve = board.create('functiongraph',[f,		curve = board.create('functiongraph',[f,
	function(){		function(){

2013-02-20T15:06:02Z

← Older revision		Revision as of 15:06, 20 February 2013
Line 14:		Line 14:
	var txtraw = document.getElementById('input').value;		var txtraw = document.getElementById('input').value;
	var txt = JXG.GeonextParser.geonext2JS(txtraw);		var txt = JXG.GeonextParser.geonext2JS(txtraw);
	~~alert(txt);~~
	f = new Function('x','var y = '+txt+'; return y;');		f = new Function('x','var y = '+txt+'; return y;');
	curve = board.create('functiongraph',[f,		curve = board.create('functiongraph',[f,

2013-02-20T15:05:24Z

← Older revision		Revision as of 15:05, 20 February 2013
Line 14:		Line 14:
	var txtraw = document.getElementById('input').value;		var txtraw = document.getElementById('input').value;
	var txt = JXG.GeonextParser.geonext2JS(txtraw);		var txt = JXG.GeonextParser.geonext2JS(txtraw);
			alert(txt);
	f = new Function('x','var y = '+txt+'; return y;');		f = new Function('x','var y = '+txt+'; return y;');
	curve = board.create('functiongraph',[f,		curve = board.create('functiongraph',[f,

2011-10-08T11:04:06Z

← Older revision		Revision as of 11:04, 8 October 2011
Line 90:		Line 90:
	}		}
	],{name:txtraw, withLabel:true});		],{name:txtraw, withLabel:true});
			var q = board.create('glider', [2, 1, curve], {withLabel:false});
			var t = board.create('text', [
			function(){ return q.X()+0.1; },
			function(){ return q.Y()+0.1; },
			function(){ return "The slope of the function f(x)=" + txtraw + "<br>at x=" + q.X().toFixed(2) + " is equal to " + (JXG.Math.Numerics.D(f))(q.X()).toFixed(2); }
			],
			{fontSize:15});
	}		}

2011-10-08T11:03:33Z

← Older revision		Revision as of 11:03, 8 October 2011
Line 31:		Line 31:
	function(){ return "The slope of the function f(x)=" + txtraw + "<br>at x=" + q.X().toFixed(2) + " is equal to " + (JXG.Math.Numerics.D(f))(q.X()).toFixed(2); }		function(){ return "The slope of the function f(x)=" + txtraw + "<br>at x=" + q.X().toFixed(2) + " is equal to " + (JXG.Math.Numerics.D(f))(q.X()).toFixed(2); }
	],		],
	{~~withLabel~~:~~false~~});		{fontSize:15});
	}		}

2011-10-08T11:02:33Z

← Older revision		Revision as of 11:02, 8 October 2011
Line 29:		Line 29:
	function(){ return q.X()+0.1; },		function(){ return q.X()+0.1; },
	function(){ return q.Y()+0.1; },		function(){ return q.Y()+0.1; },
	function(){ return "The slope of the function f(x)=" + txtraw + "<br>at x=" + q.X().toFixed(2) + " is equal to " + (JXG.Math.D(f))(q.X()).toFixed(2); }		function(){ return "The slope of the function f(x)=" + txtraw + "<br>at x=" + q.X().toFixed(2) + " is equal to " + (JXG.Math.Numerics.D(f))(q.X()).toFixed(2); }
	],		],
	{withLabel:false});		{withLabel:false});

2011-10-08T11:01:12Z

← Older revision		Revision as of 11:01, 8 October 2011
Line 29:		Line 29:
	function(){ return q.X()+0.1; },		function(){ return q.X()+0.1; },
	function(){ return q.Y()+0.1; },		function(){ return q.Y()+0.1; },
	function(){ return "The slope of the function f(x)=" + txtraw + "at x=" + q.X().toFixed(2); }		function(){ return "The slope of the function f(x)=" + txtraw + "<br>at x=" + q.X().toFixed(2) + " is equal to " + (JXG.Math.D(f))(q.X()).toFixed(2); }
	],		],
	{withLabel:false});		{withLabel:false});