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Equations in HTML: Difference between revisions

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{{obsolete|spec=[http://www.whatwg.org/specs/web-apps/current-work/multipage/the-map-element.html#mathml HTML Standard: MathML]}}
Here are some ideas for how to include equations in HTML documents.
Here are some ideas for how to include equations in HTML documents.


== Candidates ==
== Candidates ==
Full MathML:
<pre>
<pre>
<math xmlns="http://www.w3.org/1998/Math/MathML">
<math xmlns="http://www.w3.org/1998/Math/MathML">
Line 8: Line 11:
  <mfrac>
  <mfrac>
   <mrow>
   <mrow>
   <mrow>
   <mo>-</mo>
    <mo>-</mo>
  <mi>b</mi>
    <mi>b</mi>
  </mrow>
   <mo>&PlusMinus;</mo>
   <mo>&PlusMinus;</mo>
   <msqrt>
   <msqrt>
Line 19: Line 20:
     </msup>
     </msup>
     <mo>-</mo>
     <mo>-</mo>
     <mrow>
     <mn>4</mn>
    <mn>4</mn>
    <mo>&InvisibleTimes;</mo>
    <mo>&InvisibleTimes;</mo>
    <mi>a</mi>
    <mi>a</mi>
    <mo>&InvisibleTimes;</mo>
    <mo>&InvisibleTimes;</mo>
    <mi>c</mi>
    <mi>c</mi>
    </mrow>
   </msqrt>
   </msqrt>
   </mrow>
   </mrow>
Line 37: Line 36:
</pre>
</pre>


<pre>
<math xmlns="http://www.w3.org/1998/Math/MathML">
<mi>x</mi> <mo>=</mo>
<mfrac>
  <mrow>
  <mo>-</mo> <mi>b</mi> <mo>&PlusMinus;</mo>
  <msqrt>
    <msup>
    <mi>b</mi> <mn>2</mn>
    </msup>
    <mo>-</mo> <mn>4</mn> <mo>&InvisibleTimes;</mo> <mi>a</mi> <mo>&InvisibleTimes;</mo> <mi>c</mi>
  </msqrt>
  </mrow>
  <mrow>
  <mn>2</mn> <mo>&InvisibleTimes;</mo> <mi>a</mi>
  </mrow>
</mfrac>
</math>
</pre>
MathML with optional end tags:
<pre>
<math>
<mi>x <mo>=
<mfrac>
  <mrow>
  <mo>- <mi>b <mo>&PlusMinus;
  <msqrt>
    <msup> <mi>b <mn>2
    <mo>- <mn>4 <mo>&InvisibleTimes; <mi>a <mo>&InvisibleTimes; <mi>c
  </msqrt>
  </mrow>
  <mrow>
  <mn>2 <mo>&InvisibleTimes; <mi>a
</math>
</pre>
== Rejected ==
MathML, but with <mo>, <mi>, and <mn> implied:
<pre>
<math>
x =
<mfrac>
  <mrow>
  - b &PlusMinus;
  <msqrt>
    <msup> b 2 </msup>
    - 4 &InvisibleTimes; a &InvisibleTimes; c
  </msqrt>
  </mrow>
  <mrow>
  2 &InvisibleTimes; a
  </mrow>
</mfrac>
</math>
</pre>
LaTeX:
<pre>
<pre>
<math>x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}</math>
<math>x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}</math>
</pre>
</pre>


== Rejected ==


None yet.
== Research ==
 
Only presentational MathML:
 
* http://mathcast.sourceforge.net/fields.xml
* http://www-math.mit.edu/18.013A/MathML/chapter06/section01.xhtml
* http://golem.ph.utexas.edu/category/
* http://pear.math.pitt.edu/mathzilla/Examples/markupOftheWeek.mhtml
* http://dlmf.nist.gov/Contents/GA/13/
 
Content MathML, converted to Presentational MathML using XSLT and/or script:
 
* http://www.math.uah.edu/stat/point/Sufficient.xhtml

Latest revision as of 16:06, 10 November 2012

This document is obsolete.

For the current specification, see: HTML Standard: MathML


Here are some ideas for how to include equations in HTML documents.

Candidates

Full MathML:

<math xmlns="http://www.w3.org/1998/Math/MathML">
 <mi>x</mi>
 <mo>=</mo>
 <mfrac>
  <mrow>
   <mo>-</mo>
   <mi>b</mi>
   <mo>±</mo>
   <msqrt>
    <msup>
     <mi>b</mi>
     <mn>2</mn>
    </msup>
    <mo>-</mo>
    <mn>4</mn>
    <mo>⁢</mo>
    <mi>a</mi>
    <mo>⁢</mo>
    <mi>c</mi>
   </msqrt>
  </mrow>
  <mrow>
   <mn>2</mn>
   <mo>⁢</mo>
   <mi>a</mi>
  </mrow>
 </mfrac>
</math>
<math xmlns="http://www.w3.org/1998/Math/MathML">
 <mi>x</mi> <mo>=</mo>
 <mfrac>
  <mrow>
   <mo>-</mo> <mi>b</mi> <mo>±</mo>
   <msqrt>
    <msup>
     <mi>b</mi> <mn>2</mn>
    </msup>
    <mo>-</mo> <mn>4</mn> <mo>⁢</mo> <mi>a</mi> <mo>⁢</mo> <mi>c</mi>
   </msqrt>
  </mrow>
  <mrow>
   <mn>2</mn> <mo>⁢</mo> <mi>a</mi>
  </mrow>
 </mfrac>
</math>

MathML with optional end tags:

<math>
 <mi>x <mo>=
 <mfrac>
  <mrow>
   <mo>- <mi>b <mo>±
   <msqrt>
    <msup> <mi>b <mn>2
    <mo>- <mn>4 <mo>⁢ <mi>a <mo>⁢ <mi>c
   </msqrt>
  </mrow>
  <mrow>
   <mn>2 <mo>⁢ <mi>a
</math>

Rejected

MathML, but with <mo>, <mi>, and <mn> implied:

<math>
 x =
 <mfrac>
  <mrow>
   - b ±
   <msqrt>
    <msup> b 2 </msup>
    - 4 ⁢ a ⁢ c
   </msqrt>
  </mrow>
  <mrow>
   2 ⁢ a
  </mrow>
 </mfrac>
</math>


LaTeX:

<math>x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}</math>


Research

Only presentational MathML:

Content MathML, converted to Presentational MathML using XSLT and/or script: