This is a draft document supplied by the WCAG Techniques Task Force. It in no way represents a WCAG Working Group consensus or agreement and is provided for informational and discussion purposes only. The accessibility test listed below should not be construed as required for conformance with the proposed WCAG2.
img
elements with images containing math expressions have equivalent MathML markup.Copyright 2005, ATRC, University Of Toronto, All Rights Reserved. W3C liability, trademark, document use and software licensing rules apply.
This test case was created by the ATRC at the University Of Toronto. It should not be construed as required for conformance with the proposed WCAG2.
The complete list of tests may be found at http://www.w3.org/WAI/GL/WCAG20/tests/
Comments on this test may be made to the WCAG mailing list.
As part of the conformance test process, this test has a status of 'assigned'.
This test is not required for conformance to the current WCAG2. It is provided for discussion and informational purposes only.
There are no techniques related to this test.
There are no prerequisite tests for this test.
img
element in the content.img
elements with images containing math expressions have equivalent MathML markup.Any accessibility check may be performed after this test.
These test files contain examples of the accessibility problem detectable by this test. They may also contain more accessibility problems than the one described in this test. Please ignore any extraneous accessibility problems in these files.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/REC-html40/strict.dtd">
<html lang="en">
<head>
<title>Testfile - Check #135 - Positive</title>
</head>
<body>
<p>The following image shows the solution to the quadratic equation: begin fraction minus b plus or minus begin square root of b squared minus four a c end square root over 2 a end fraction</p>
<img src="quadeqn.png" alt="solution to the quadratic equation" width="179" height="63">
</body>
</html>
<!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 lang="en">
<head>
<title>Testfile - Check #135 - Negative</title>
</head>
<body>
<p>The following image shows the solution to the quadratic equation: begin fraction minus b plus or
minus begin square root of b squared minus four a c end square root over 2 a
end fraction</p>
<img src="quadeqn.png" alt="solution to the quadratic equation" width="179" height="63">
<math xmlns='http://www.w3.org/1998/Math/MathML'>
<mfrac>
<mrow>
<mrow>
<mo>-</mo>
<mi>b</mi>
</mrow>
<mo>±</mo>
<msqrt>
<mrow>
<msup>
<mi>b</mi>
<mn>2</mn>
</msup>
<mo>-</mo>
<mrow>
<mn>4</mn>
<mo>⁢</mo>
<mi>a</mi>
<mo>⁢</mo>
<mi>c</mi>
</mrow>
</mrow>
</msqrt>
</mrow>
<mrow>
<mn>2</mn>
<mo>⁢</mo>
<mi>a</mi>
</mrow>
</mfrac>
</math>
</body>
</html>