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    <merror>

    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
    Last updated by: fscholz,