<opEmu> (Operator Emulator)

This element specifies the Operator Emulator property on <box>. When on, the box and its contents behave as a single operator and inherit the properties of an operator. This means, for example, that the character can serve as a point for a line break and can be aligned to other operators. Operator Emulators are often used when one or more glyphs combine to form an operator, such as . The following equation uses an Operator Emulator:

example: 
<m:r>
  <m:t>a</m:t>
</m:r>
<m:box>
  <m:boxPr>
    <m:opEmu	m:val="on"/>
    <m:aln/>
  </m:boxPr>
  <m:e>
    <m:r>
      <m:t>==</m:t>
    </m:r>
  </m:e>
</m:box>
<m:r>
  <m:t>b</m:t>
</m:r>

Parent Elements

<boxPr> (§7.1.2.14)

Attributes

Description

<val> (value)

Specifies a binary value for the property defined by the parent XML element.

A value of on specifies that the property shall be explicitly applied. This is the default value for this attribute, and is implied when the parent element is present.

A value of off specifies that the property shall be explicitly turned off. This is implied when the parent element is not present.

The possible values for this attribute are defined by the ST_OnOff simple type (§7.1.3.9).

The following XML Schema fragment defines the contents of this element:

<complexType name="CT_OnOff">
	<attribute name="val" type="ST_OnOff"/>
</complexType>