mathquill.github.com/index.html at master · mathquill/mathquill.github.com · GitHub

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<!DOCTYPE html>

<html>
<head>

<meta name="viewport" content="width=800">

<title>MathQuill: Easily type math into your webapp</title>

<link rel="stylesheet" type="text/css" href="support/home.css">
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}
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<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<script type="text/javascript" src="lib/mathquill.js"></script>

</head>
<body>
<nav>
  <span id="nav-home">MathQuill</span>
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</nav>
<main>

<h1>MathQuill</h1>
<h2>Easily type math in your webapp</h2>

<p id="animation">
  Easily type math:
  <span id="math-field-animated"></span>
  <kbd class="light"></kbd>
  <span id="continue-typing">demo typing</span>
</p>

<script>
var MQ = MathQuill.getInterface(2); // for backcompat
var mathFieldAnimated = MQ.MathField($('#math-field-animated')[0], {
  spaceBehavesLikeTab: true
});
mathFieldAnimated.focus()
$('#math-field-animated').on('focusout.animation mousedown.animation keydown.animation', function() {
  clearTimeout(animationId);
  $('kbd').fadeOut(1000);
  var containerCoords = $('#animation').offset();
  var mathFieldCoords = $('#math-field-animated').offset();
  $('#continue-typing').show().css({
    top: mathFieldCoords.top - containerCoords.top + $('#math-field-animated').height() + 12,
    left: mathFieldCoords.left - containerCoords.left + ($('#math-field-animated').width() - $('#continue-typing').outerWidth())/2
  });
});
$('#continue-typing').click(function() {
  $(this).hide();
  mathFieldAnimated.focus();

  var alteredLatex = mathFieldAnimated.latex();

  // make sure we're back in the state we were before the
  // viewer interacted with the math field, by clearing it
  // then insta-running the whole typing sequence
  mathFieldAnimated.latex('');
  for (var i = 0; i < nextCharIndex; i += 1) {
    // Type numerator
    if (i < exprLength) {
      if (expression[i] === ' ') mathFieldAnimated.keystroke('Spacebar');
      else mathFieldAnimated.typedText(expression[i]);
    // Select numerator
    } else if (i >= exprLength && i < exprLength + selectLength) {
      mathFieldAnimated.keystroke('Shift-Left');
    // Type denominator
    } else {
      mathFieldAnimated.typedText(expressionDenom[i - exprLength - selectLength]);
    }
  }

  // if the LaTeX hadn't been altered at all, forge ahead with typing
  if (mathFieldAnimated.latex() === alteredLatex) {
    animateTyping();
  // but if it had been altered and was just reset, standard brief pause
  } else {
   animationId = setTimeout(animateTyping, 500);
  }
});

var expression = 'x=-b\\pm \\sqrt b^2 -4ac';
var exprLength = expression.length;
var selectLength = 10;
var expressionDenom = '/2a';
var nextCharIndex = 0;

function showKeystroke(key) {
  var cursorCoords = $('#animation .mq-cursor, #animation .mq-selection').offset();
  var containerCoords = $('#animation').offset();
  $('kbd').text(key).stop().css({
    display: 'inline',
    opacity: 1,
    top: $('#math-field-animated').offset().top - containerCoords.top + $('#math-field-animated').height() + 10,
    left: cursorCoords.left - containerCoords.left - ($('kbd').outerWidth()/2) + 2
  });
}

var animationId = setTimeout(animateTyping, 1500);
function animateTyping() {
  // Type numerator
  if (nextCharIndex < exprLength) {
    var character = expression[nextCharIndex];
    if (character == ' ') {
      mathFieldAnimated.keystroke('Spacebar');
      showKeystroke('Space');
    } else {
      mathFieldAnimated.typedText(character);
      showKeystroke(character);
    }

  // Select numerator
  } else if (nextCharIndex >= exprLength && nextCharIndex < exprLength + selectLength) {
    mathFieldAnimated.keystroke('Shift-Left');
    showKeystroke('Shift-Left');
    nextCharIndex++;
    animationId = setTimeout(animateTyping, 150);
    return;

  // Type denominator
  } else {
    var denomIndex = nextCharIndex - (exprLength + selectLength);
    var character = expressionDenom[denomIndex];
    mathFieldAnimated.typedText(character);
    showKeystroke(character);
    if (denomIndex === 0) {
      nextCharIndex++;
      animationId = setTimeout(animateTyping, 600);
      return;
    }
  }

  if (nextCharIndex < (exprLength + selectLength + expressionDenom.length - 1)) {
   nextCharIndex++;
   animationId = setTimeout(animateTyping, 500);
  } else {
    $('kbd').fadeOut(1000);
    $('#math-field-animated').off('.animation');
  }
}
</script>

<p>In your webapp:</p>

<div id="example">
  <p>Type math here: <span id="math-field"></span></p>
  <p>LaTeX of what you typed: <code id="latex"></code></p>

  <script>
  var mathFieldSpan = document.getElementById('math-field');
  var latexSpan = document.getElementById('latex');

  var MQ = MathQuill.getInterface(2); // for backcompat
  var mathField = MQ.MathField(mathFieldSpan, {
    spaceBehavesLikeTab: true, // configurable
    handlers: {
      edit: function() { // useful event handlers
        latexSpan.textContent = mathField.latex(); // simple API
      }
    }
  });
  </script>
</div>

<!--- Syntax highlighting courtesy of rouge.jneen.net -->
<pre class="highlight">
<span class="nt">&lt;p&gt;</span>Type math here: <span class="nt">&lt;span</span> <span class="na">id=</span><span class="s">"math-field"</span><span class="nt">&gt;&lt;/span&gt;&lt;/p&gt;</span>
<span class="nt">&lt;p&gt;</span>LaTeX of what you typed: <span class="nt">&lt;span</span> <span class="na">id=</span><span class="s">"latex"</span><span class="nt">&gt;&lt;/span&gt;&lt;/p&gt;</span>

<span class="nt">&lt;script&gt;</span>
<span class="kd">var</span> <span class="nx">mathFieldSpan</span> <span class="o">=</span> <span class="nb">document</span><span class="p">.</span><span class="nx">getElementById</span><span class="p">(</span><span class="s1">'math-field'</span><span class="p">);</span>
<span class="kd">var</span> <span class="nx">latexSpan</span> <span class="o">=</span> <span class="nb">document</span><span class="p">.</span><span class="nx">getElementById</span><span class="p">(</span><span class="s1">'latex'</span><span class="p">);</span>

<span class="kd">var</span> <span class="nx">MQ</span> <span class="o">=</span> <span class="nx">MathQuill</span><span class="p">.</span><span class="nx">getInterface</span><span class="p">(</span><span class="mi">2</span><span class="p">);</span> <span class="c1">// for backcompat</span>
<span class="kd">var</span> <span class="nx">mathField</span> <span class="o">=</span> <span class="nx">MQ</span><span class="p">.</span><span class="nx">MathField</span><span class="p">(</span><span class="nx">mathFieldSpan</span><span class="p">,</span> <span class="p">{</span>
  <span class="na">spaceBehavesLikeTab</span><span class="p">:</span> <span class="kc">true</span><span class="p">,</span> <span class="c1">// configurable</span>
  <span class="na">handlers</span><span class="p">:</span> <span class="p">{</span>
    <span class="na">edit</span><span class="p">:</span> <span class="kd">function</span><span class="p">()</span> <span class="p">{</span> <span class="c1">// useful event handlers</span>
      <span class="nx">latexSpan</span><span class="p">.</span><span class="nx">textContent</span> <span class="o">=</span> <span class="nx">mathField</span><span class="p">.</span><span class="nx">latex</span><span class="p">();</span> <span class="c1">// simple API</span>
    <span class="p">}</span>
  <span class="p">}</span>
<span class="p">});</span>
<span class="nt">&lt;/script&gt;</span>
</pre>

<h3>Usage</h3>
<p>See the <a href="http://docs.mathquill.com/en/latest/Getting_Started/">Getting Started Guide</a> on Read the Docs.</p>

<h3 id="community">Community</h3>
<p>We love offering help and receiving feedback:</p>
<p id="community-links"><script async defer src="http://slackin.mathquill.com/slackin.js?large"></script> <a href="irc://irc.freenode.net/mathquill" class="no-underline"><img alt="freenode irc: #mathquill" src="images/freenode-irc-mathquill.svg" style="height: 1.2em" /></a> <a href="https://twitter.com/intent/tweet?screen_name=MathQuill" class="twitter-mention-button" data-size="large" data-related="MathQuill" data-dnt="true">Tweet to @MathQuill</a>
<p>Or, email us: <a href="mailto:maintainers@mathquill.com"><code>maintainers@mathquill.com</code></a></p>
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<h3>Partners</h3>
<p id="pre-partner-tree">Ongoing development is thanks to <a href="/partners.html">our innovative partners</a>:</p>
<div id="partner-tree">
  <img id="quill_small" src="/images/quill_small.png">
  <span class="line" id="sapientdocs-line"></span>
  <a title="Coming soon!"><img id="sapientdocs" src="/images/partner_logos/sapientdocs.png"></a>
  <span class="line" id="desmos-line"></span>
  <a href="http://desmos.com"><img id="desmos" src="/images/partner_logos/desmos.png"></a>
  <a href="https://www.learnosity.com"><img id="learnosity" src="/images/partner_logos/learnosity.jpg"></a>
  <span class="line" id="learnosity-line"></span>
  <span class="line" id="you-line"></span>
  <p id="you">
    <a id="your-logo" class="no-underline" href="/partners.html" title="this could be us but you playin'">You</a>
    Use MathQuill? <a href="/partners.html">Partner with us</a> so we can work more closely with you!
  </p>
</div>

<h3>About</h3>
<p>MathQuill is an open source formula editor for the Web maintained by <a href="http://github.com/laughinghan" title="Han" class="github-mention">@laughinghan</a> and <a href="http://github.com/stufflebear" title="Mary" class="github-mention">@stufflebear</a>.</p>
<p>MathQuill was born of a need to communicate math. The creators, <span class="github-mention">@laughinghan</span> and <a href="http://github.com/jneen" title="Jeanine" class="github-mention">@jneen</a>, used LaTeX for projects together, but struggled to collaborate online once they were apart. They wanted a tool to both write and read math without resorting to ugly flat text or more cumbersome conventions.</p>
<p>After a couple of iterations, MathQuill had become widely useful. Today, MathQuill is used in educational software, math visualizations, collaborative editors, and more.</p>

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