<mo>

The <mo> MathML element represents an operator in a broad sense. Besides operators in strict mathematical meaning, this element also includes "operators" like parentheses, separators like comma and semicolon, or "absolute value" bars.

Attributes

In addition to the global MathML attributes, this element accepts the following attributes whose default values depend on the operator's form and content:

accent

A <boolean> indicating whether the operator should be treated as an accent when used as an under- or overscript (i.e. drawn bigger and closer to the base expression).

fence

A <boolean> indicating whether the operator is a fence (such as parentheses). There is no visual effect for this attribute.

largeop

A <boolean> indicating whether the operator should be drawn bigger when math-style is set to normal.

lspace

A <length-percentage> indicating the amount of space before the operator.

maxsize

A <length-percentage> indicating the maximum size of the operator when it is stretchy.

minsize

A <length-percentage> indicating the minimum size of the operator when it is stretchy.

movablelimits

A <boolean> indicating whether attached under- and overscripts move to sub- and superscript positions when math-style is set to compact.

rspace

A <length-percentage> indicating the amount of space after the operator.

separator

A <boolean> indicating whether the operator is a separator (such as commas). There is no visual effect for this attribute.

stretchy

A <boolean> indicating whether the operator stretches to the size of the adjacent element.

symmetric

A <boolean> indicating whether a stretchy operator should be vertically symmetric around the imaginary math axis (centered fraction line).

Note: For the lspace, maxsize, minsize and rspace attributes, some browsers may also accept legacy MathML lengths.

Examples

html

<math display="block">
  <mrow>
    <mn>5</mn>
    <mo>+</mo>
    <mn>5</mn>
  </mrow>
</math>

<math display="block">
  <mrow>
    <mo>[</mo> <!-- default form value: prefix -->
    <mrow>
      <mn>0</mn>
      <mo>;</mo> <!-- default form value: infix -->
      <mn>1</mn>
    </mrow>
    <mo>)</mo> <!-- default form value: postfix -->
  </mrow>
</math>

Specifications

Specification
MathML Core
# operator-fence-separator-or-accent-mo

Browser compatibility

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