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The MathML <menclose> element renders its content inside an enclosing notation specified by the notation attribute.


class, id, style
Provided for use with stylesheets.
Used to set a hyperlink to a specified URI.
The background color. You can use #rgb, #rrggbb and HTML color names.
The text color. You can use #rgb, #rrggbb and HTML color names.
A list of notations, separated by white space, to apply to the child elements. The symbols are each drawn as if the others are not present, and therefore may overlap. Possible values are:
Value Sample Rendering Rendering in
your browser
longdiv (default) longdiv a2 + b2 long division symbol
actuarial actuarial a2 + b2 actuarial symbol
radical radical a2 + b2 square root symbol
box box a2 + b2 box
roundedbox roundedbox a2 + b2 rounded box
circle circle a2 + b2 circle
left left a2 + b2 line to the left of the contents
right right a2 + b2 line to the right of the contents
top top a2 + b2 line above of the contents
bottom bottom a2 + b2 line below of the contents
updiagonalstrike updiagonalstrike a2 + b2 strikeout line through contents from lower left to upper right
downdiagonalstrike downdiagonalstrike a2 + b2 strikeout line through contents from upper left to lower right
verticalstrike verticalstrike a2 + b2 vertical strikeout line through contents
horizontalstrike horizontalstrike a2 + b2 horizontal strikeout line through contents
madruwb madruwb a2 + b2 Arabic factorial symbol
updiagonalarrow a2 + b2 diagonal arrow
phasorangle Screenshot of the phasorangle notation a2 + b2 phasor angle



  <menclose notation="circle box">
    <mi> x </mi>
    <mo> + </mo>
    <mi> y </mi>



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

Browser compatibility


FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support No ?1 No No Yes
notation No ?1 No No71
href No ?7 No No10
mathbackground No ?4 No No Yes
mathcolor No ?4 No No Yes
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support No No ?4 No Yes ?
notation No No ?4 No No ?
href No No ?7 No No ?
mathbackground No No ?4 No No ?
mathcolor No No ?4 No No ?

1. updiagonalarrow and phasorangle are not supported, see WebKit bug 127466.


Gecko-specific notes

  • Addtional values for the notation attribute have been added in the following releases:
    • madruwb in Gecko 2.0 (Firefox 4 / Thunderbird 3.3 / SeaMonkey 2.1).
    • updiagonalarrow in Gecko 24.0 (Firefox 24.0 / Thunderbird 24.0 / SeaMonkey 2.21)
    • phasorangle in Gecko 32.0 (Firefox 32.0 / Thunderbird 32.0 / SeaMonkey 2.29)


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