Publishers tab

The Publishers tab provides advanced MathType tools used mainly in publishing workflows. These tools help control the MathML generated by MathType, including inline and display layout, invisible operators, number separators, and monospace variants.

These options are intended for publishers, developers, and advanced users who need precise control over the generated MathML.

Requirements/Prerequisites:

• MathType Web or a MathType integration.
• The Publishers tab must be enabled by an administrator.
• Basic familiarity with MathML is recommended.

Publishers tab overview

The Publishers tab is not part of the default toolbar. It must be enabled in the toolbar configuration.

The available buttons are:

Button	Name	Purpose
	Toggle equation inline/block	Controls the display attribute of the <math> element.
	Display as block	Sets selected elements to display style using displaystyle="true".
	Display as inline	Sets selected elements to inline style using displaystyle="false".
	Invisible plus	Inserts an invisible plus operator.
	Invisible times	Inserts an invisible multiplication operator.
	Invisible separator	Inserts an invisible separator.
	Invisible function application	Inserts an invisible function application operator.
	Merge separators into <mn> elements	Merges selected digit separators into the surrounding <mn> element.
	Clear monospace mathvariant	Removes the monospace mathvariant attribute from selected elements.
	Set mathvariant to monospace	Applies mathvariant="monospace" to selected alphanumeric elements.

Inline and block display

Toggle equation inline/block

The Toggle equation inline/block button controls the display attribute of the <math> element.

If the expression contains display="inline", clicking the button removes the attribute. If the display attribute is not present, clicking the button adds display="inline".

Inline expressions are intended to appear inside paragraphs. Expressions without the inline display attribute are displayed on their own line.

Display as block or inline

The Display as block and Display as inline buttons control the displaystyle attribute of selected elements.

This differs from the Toggle equation inline/block button, which affects the whole equation through the <math> element.

Inline: displaystyle="false"		Display: displaystyle="true"
In MathType	In browser	In MathType	In browser

Invisible operators

Invisible operators are mainly useful for improving accessibility and MathML semantics. They can also improve spacing and line breaking in some expressions.

For example, the visual expression xy may represent two variables placed next to each other, or the multiplication of x by y. Adding an invisible times operator preserves the intended meaning without changing the visual rendering.

The Publishers tab includes the following invisible operators:

• Invisible plus
• Invisible times
• Invisible separator
• Invisible function application

Merge separators into <mn> elements

By default, digit separators in MathType are inserted as separate <mo> elements. MathType does not assume whether the separator belongs inside a number represented by <mn>.

The Merge separators into <mn> elements option gives you control over this behavior. When enabled, selected separator characters typed after a number are inserted inside the <mn> element instead of being generated as separate <mo> elements.

You can also perform this manually by selecting the number and separator, then clicking the Merge/unmerge separators in <mn> button in the Contextual tab.

This MathML:

<mn>1</mn><mo>.</mo><mn>5</mn>

becomes:

<mn>1.5</mn>

Monospace

The Publishers tab includes two monospace-related buttons:

• Set mathvariant to monospace: applies mathvariant="monospace" to selected elements.
• Clear monospace mathvariant: removes the monospace attribute from selected elements.

Only alphanumeric characters, from A to Z and digits 0 to 9, are displayed with a monospace font.

For example, selecting this MathML:

<mi>h</mi><mi>e</mi><mi>l</mi><mi>l</mi><mi>o</mi>

and applying monospace produces:

<mi mathvariant="monospace">hello</mi>

Authoring width, height, and depth for <mspace>

The Contextual tab also includes publisher-oriented controls for editing <mspace> elements:

• <mspace> width
• <mspace> height
• <mspace> depth

To use these controls, place the insertion point next to an <mspace> element, select the corresponding button, and enter a numerical value followed by a supported unit.

Supported units are:

• em
• ex
• px

Other units are ignored by MathType.

The following example shows an <mspace> with width 1em, height 3ex, and depth 2ex. The <mspace> element is normally invisible, but it is selected in the screenshot to make it visible.