<merror>

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The MathML <merror> element is used to display contents as error messages. In Firefox this error message is rendered similar to the typical XML error message. Note that this error is not thrown when your MathML markup is wrong or not well-formed XML. You will still get an XML parsing error (in case of the XHTML notation of MathML), which has nothing to do with <merror>.

Attributes

class, id, style
Provided for use with stylesheets.
href
Used to set a hyperlink to a specified URI.
mathbackground
The background color. You can use #rgb, #rrggbb and HTML color names.
mathcolor
The text color and also the fraction line color. You can use #rgb, #rrggbb and HTML color names.

Examples

<math>

<merror>
  <mrow>
    <mtext> Division by zero: </mtext>
    <mfrac>
      <mn> 1 </mn>
      <mn> 0 </mn>
    </mfrac>
  </mrow>
</merror>

</math>

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support Not supported (24 only) 1.0 (1.7 or earlier) Not supported 9.5 5.1
href Not supported WebKit bug 85733 7.0 (7.0) Not supported Not supported Not supported WebKit bug 85733
mathbackground Not supported (24 only) 4.0 (2.0) Not supported Not supported 5.1
mathcolor Not supported (24 only) 4.0 (2.0) Not supported Not supported 5.1
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support Not supported Not supported 1.0 (1.0) Not supported Not supported Not supported
href Not supported Not supported 7.0 (7.0) Not supported Not supported Not supported
mathbackground Not supported Not supported 4.0 (2.0) Not supported Not supported Not supported
mathcolor Not supported Not supported 4.0 (2.0) Not supported Not supported Not supported

Specifications

Specification Status Comment
MathML 3.0 Recommendation Current specification
MathML 2.0 Recommendation Initial specification

 

Document Tags and Contributors

Contributors to this page: Sheppy, fscholz
最后编辑者: fscholz,