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    mi Redirect 1

    The MathML <mi> element indicates that the content should be rendered as an identifier such as function names, variables or symbolic constants. You can also have arbitrary text in it to mark up terms.

    Attributes

    class, id, style
    Provided for use with stylesheets.
    dir
    The text direction. Possible values are either ltr (left to right) or rtl (right to left).
    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. You can use #rgb, #rrggbb and HTML color names.
    mathsize
    The size of the content. Possible values are:
    • small: Font is rendered smaller than the current font size.
    • normal: Equivalent to 100% or 1em.
    • big: Font is rendered larger than the current font size.
    • a custom length.
    • or a unitless value which multiplies the default.
    mathvariant
    This logical class of the identifier, which varies in typography. That is, although the names suggest the typographic style for the class, semantically, items with the same class are treated "the same" within an expression, which might or might not involve displaying them with the named typography. The following values are allowed:
    • normal (Default value for more than one character) ; Example
    • bold ; Example
    • italic (Default value for a single character) ; Example
    • bold-italic ; Example
    • double-struck ; Example
    • bold-fraktur ; Example
    • script ; Example
    • bold-script ; Example
    • fraktur ; Example
    • sans-serif ; Example
    • bold-sans-serif ; Example
    • sans-serif-italic ; Example
    • sans-serif-bold-italic ; Example
    • monospace ; Example
    • initial ; مثال
    • tailed ; مثال
    • looped ; مثال
    • stretched ; مثال

    Examples

    <math> 
    
      <mi> y </mi>  
    
      <mi> sin </mi>
    
      <mi mathvariant="monospace"> x </mi>
    
      <mi mathvariant="bold"> &pi; </mi>
    
    </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
    dir attribute Not supported 12.0 (12.0) Not supported Not supported Not supported
    href attribute Not supported WebKit bug 85733 7.0 (7.0) Not supported Not supported Not supported WebKit bug 85733
    mathsize attribute Not supported (24 only) 1.0 (1.7 or earlier) Not supported Not supported 5.1
    mathvariant attribute Not supported (24 only) 28.0 (28.0) Not supported partially supported (see above) [*] partially supported (see above) [*]
    Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
    Basic support Not supported Not supported 1.0 (1.9.2) Not supported Not supported Not supported
    dir attribute Not supported Not supported 12.0 (12.0) Not supported Not supported Not supported
    href attribute Not supported Not supported 7.0 (7.0) Not supported Not supported Not supported
    mathsize attribute Not supported Not supported 1.0 (1.9.2) Not supported Not supported Not supported
    mathvariant attribute Not supported Not supported 28.0 (28.0) Not supported Not supported Not supported

    [*] The font style does not change to normal when the content is more than a single character.

    Gecko-specific notes

    • Starting with Gecko 20.0 (Firefox 20.0 / Thunderbird 20.0 / SeaMonkey 2.17) a unitless value for mathsize is allowed.
    • Some mathvariant values are only implemented starting with Gecko 28.0 (Firefox 28.0 / Thunderbird 28.0 / SeaMonkey 2.25) and require appropriate math fonts.

    Specifications

    Specification Status Comment
    MathML 3.0
    The definition of 'mi' in that specification.
    Recommendation Current specification
    MathML 2.0
    The definition of 'mi' in that specification.
    Recommendation Initial specification

     

    Document Tags and Contributors

    Contributors to this page: Sheppy
    Last updated by: Sheppy,