[Blindmath] Format for matrices
Neil Soiffer
NeilS at dessci.com
Wed Nov 9 19:40:17 UTC 2011
In IE9 and several other browsers, you can use HTML5, but using XHTML is
safer as it works in older versions of IE and Firefox. You can also use
MathJax to display the MathML, which will render in ALL browsers. Works on
mobile devices also (ipads, android, ...). You need to get the header
right. Examples below. If you use MathJax and use IE+MathPlayer to view
it, the math is accessible.
Neil Soiffer
Senior Scientist
Design Science, Inc.
www.dessci.com
~ Makers of MathType, MathFlow, MathPlayer, MathDaisy, Equation Editor ~
Here's XHTML (give it a suffix .xhtml or .xht):
<?xml version="1.0"?>
<!-- saved from url=(0014)about:internet -->
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1 plus MathML 2.0//EN" "
http://www.w3.org/TR/MathML2/dtd/xhtml-math11-f.dtd" [<!ENTITY mathml "
http://www.w3.org/1998/Math/MathML">]>
<html xmlns:m="http://www.w3.org/1998/Math/MathML"xmlns="
http://www.w3.org/1999/xhtml" lang="en">
</head>
<body>
<p>
<math display='block' xmlns='http://www.w3.org/1998/Math/MathML'>
<mrow>
<mrow><mo>(</mo>
<mrow>
<mtable>
<mtr>
<mtd>
<mn>1</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
</mtr>
<mtr>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>1</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
</mtr>
<mtr>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>1</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
</mtr>
<mtr>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>1</mn>
</mtd>
</mtr>
</mtable>
</mrow>
<mo>)</mo></mrow>
</mrow>
</math>
</body>
</html>
Here's HTML5:
<!DOCTYPE>
<HTML><HEAD><TITLE>HTML5 + MathML with no explicit namespace</TITLE>
<META content="text/html; charset=windows-1252" http-equiv="Content-Type">
</HEAD>
<BODY>
<H2>HTML5 + MathML with no explicit namespace</H2>
<math display='block' xmlns='http://www.w3.org/1998/Math/MathML'>
<mrow>
<mrow><mo>(</mo>
<mrow>
<mtable>
<mtr>
<mtd>
<mn>1</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
</mtr>
<mtr>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>1</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
</mtr>
<mtr>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>1</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
</mtr>
<mtr>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>1</mn>
</mtd>
</mtr>
</mtable>
</mrow>
<mo>)</mo></mrow>
</mrow>
</math>
</BODY></HTML>
Here's a (HTML4) page using MathJax:
<!DOCTYPE html>
<html>
<head>
<title>MathJax + MathML Test Page</title>
<script type="text/javascript"
src="
http://cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-MML_HTMLorMML
">
</script>
</head>
<body>
<H1>HTML5 + MathML with no explicit namespace</H1>
<math display='block' >
<mrow>
<mrow><mo>(</mo>
<mrow>
<mtable>
<mtr>
<mtd>
<mn>1</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
</mtr>
<mtr>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>1</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
</mtr>
<mtr>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>1</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
</mtr>
<mtr>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>0</mn>
</mtd>
<mtd>
<mn>1</mn>
</mtd>
</mtr>
</mtable>
</mrow>
<mo>)</mo></mrow>
</mrow>
</math>
</body></html>
On Wed, Nov 9, 2011 at 10:51 AM, Ken Perry <kperry at blinksoft.com> wrote:
>
> While I agree this is the correct way to display it if the person has a web
> browser that displays mathml it might be better to display it in a code
> block or a normal table until web browsers catch up with mathml. I tried
> this block of code in IE 9 and it just gave a string of numbers with Jaws
> 12 and while I would love it if all browsers supported this if you're
> trying
> to make something accessible for the time being for a student it might be
> better using something else.
>
> Just my opinion.
>
> Ken
>
> -----Original Message-----
> From: blindmath-bounces at nfbnet.org [mailto:blindmath-bounces at nfbnet.org]
> On
> Behalf Of Neil Soiffer
> Sent: Wednesday, November 09, 2011 1:39 PM
> To: Blind Math list for those interested in mathematics
> Subject: Re: [Blindmath] Format for matrices
>
> You can use MathML. Here's a 4x4 identity matrix:
>
> <math display='block' xmlns='http://www.w3.org/1998/Math/MathML'>
> <mrow>
> <mrow><mo>(</mo>
> <mrow>
> <mtable>
> <mtr>
> <mtd>
> <mn>1</mn>
> </mtd>
> <mtd>
> <mn>0</mn>
> </mtd>
> <mtd>
> <mn>0</mn>
> </mtd>
> <mtd>
> <mn>0</mn>
> </mtd>
> </mtr>
> <mtr>
> <mtd>
> <mn>0</mn>
> </mtd>
> <mtd>
> <mn>1</mn>
> </mtd>
> <mtd>
> <mn>0</mn>
> </mtd>
> <mtd>
> <mn>0</mn>
> </mtd>
> </mtr>
> <mtr>
> <mtd>
> <mn>0</mn>
> </mtd>
> <mtd>
> <mn>0</mn>
> </mtd>
> <mtd>
> <mn>1</mn>
> </mtd>
> <mtd>
> <mn>0</mn>
> </mtd>
> </mtr>
> <mtr>
> <mtd>
> <mn>0</mn>
> </mtd>
> <mtd>
> <mn>0</mn>
> </mtd>
> <mtd>
> <mn>0</mn>
> </mtd>
> <mtd>
> <mn>1</mn>
> </mtd>
> </mtr>
>
> </mtable>
> </mrow>
> <mo>)</mo></mrow>
> </mrow>
> </math>
>
>
> On Wed, Nov 9, 2011 at 2:56 AM, Richard Baldwin
> <baldwin at dickbaldwin.com>wrote:
>
> > Is there an accepted accessible format for representing 4x4 matrices
> > in web pages?
> >
> > Thanks,
> > Dick Baldwin
> >
> > --
> > Richard G. Baldwin (Dick Baldwin)
> > Home of Baldwin's on-line Java Tutorials http://www.DickBaldwin.com
> >
> > Professor of Computer Information Technology Austin Community College
> > (512) 223-4758
> > mailto:Baldwin at DickBaldwin.com
> > http://www.austincc.edu/baldwin/
> > _______________________________________________
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