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<!DOCTYPE html> | |
<html> | |
<head> | |
<title>MathJax Dynamic Math Test Page</title> | |
<!-- Copyright (c) 2010-2015 The MathJax Consortium --> | |
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> | |
<meta http-equiv="X-UA-Compatible" content="IE=edge" /> | |
<meta name="viewport" content="width=device-width, initial-scale=1"> | |
<script type="text/javascript" src="https://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script> | |
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js"></script> | |
<style> | |
input {margin-top: .7em} | |
.output { | |
border: 1px solid black; | |
padding: 1em; | |
width: auto; | |
position: absolute; top: 0; left: 2em; | |
min-width: 20em; | |
} | |
.box {position: relative} | |
</style> | |
</head> | |
<body> | |
<script> | |
// | |
// Use a closure to hide the local variables from the | |
// global namespace | |
// | |
(function () { | |
var QUEUE = MathJax.Hub.queue; // shorthand for the queue | |
var math = null, box = null; // the element jax for the math output, and the box it's in | |
// | |
// Hide and show the box (so it doesn't flicker as much) | |
// | |
var HIDEBOX = function () {box.style.visibility = "hidden"} | |
var SHOWBOX = function () { | |
box.style.visibility = "visible" | |
console.log($("#MathJax-Element-2-Frame")); | |
$("#mmlMathOutput").val($("#MathJax-Element-2-Frame").attr('data-mathml')); | |
} | |
// | |
// Get the element jax when MathJax has produced it. | |
// | |
QUEUE.Push(function () { | |
math = MathJax.Hub.getAllJax("MathOutput")[0]; | |
box = document.getElementById("box"); | |
SHOWBOX(); // box is initially hidden so the braces don't show | |
}); | |
// | |
// The onchange event handler that typesets the math entered | |
// by the user. Hide the box, then typeset, then show it again | |
// so we don't see a flash as the math is cleared and replaced. | |
// | |
window.UpdateMath = function (TeX) { | |
console.log(TeX); | |
QUEUE.Push( | |
HIDEBOX, | |
["resetEquationNumbers",MathJax.InputJax.TeX], | |
["Text",math,"\\displaystyle{"+TeX+"}"], | |
SHOWBOX | |
); | |
} | |
})(); | |
</script> | |
<p> | |
Ingrese el código \(\rm\TeX\) y presione ENTER:<br /> | |
<input id="MathInput" size="80" onchange="UpdateMath(this.value)" /> | |
</p> | |
<p>Resultado en MathML:</p> | |
<div> | |
<textarea id="mmlMathOutput" cols="65" rows="10"></textarea> | |
</div> | |
<p>Vista previa:</p> | |
<div class="box" id="box" style="visibility:hidden"> | |
<div id="MathOutput" class="output">$${}$$</div> | |
</div> | |
<script> | |
// | |
// IE doesn't fire onchange events for RETURN, so | |
// use onkeypress to do a blur (and refocus) to | |
// force the onchange to occur | |
// | |
if (MathJax.Hub.Browser.isMSIE) { | |
MathInput.onkeypress = function () { | |
if (window.event && window.event.keyCode === 13) {this.blur(); this.focus()} | |
} | |
} | |
</script> | |
</body> | |
</html> |
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