## ISO Standards Tag Set (ISOSTS) version 0.5: A customization of NISO JATS version 0.4

#### International Organization for Standardization (ISO)

# <disp-formula-group>

# Formula, Display Group

Container element for equations or other mathematical expressions.

## Attributes

##### content-type Type of Content

##### id Identifier

##### originator Originator

##### specific-use Specific Use

##### xml:lang Language

## Model Description

The following, in order:

- <label> Label of a Figure, Reference, Etc., zero or one
- <caption> Caption of a Figure, Table, etc., zero or one
- Any combination of:
  - <alt-text> Title, Alternate
  - <long-desc> Long Description
  - <email> Email Address
  - <ext-link> External Link
  - <uri> Uniform Resource Indicator (URI)
- Any combination of:
  - <disp-formula> Formula, Display
  - <disp-formula-group> Formula, Display Group

### This element may be contained in:

<ack>, <app>, <app-group>, <bio>, <body>, <boxed-text>, <disp-formula-group>, <disp-quote>, <fig>, <glossary>, <license-p>, <named-content>, <non-normative-example>, <non-normative-note>, <notes>, <p>, <ref-list>, <sec>, <styled-content>, <supplementary-material>, <td>, <term>, <term-display>, <term-sec>, <th>

### Example

    ...
    <sec>
    <title>The Quadratic Formula Explained</title>
    <p>...</p>
    <disp-formula-group>
    <disp-formula id="formula-qf-1">
    <label>(1)</label>
    <mml:math>
    <mml:mrow>...</mml:mrow>
    </mml:math>
    </disp-formula>

    <disp-formula id="formula-qf-2">
    <label>(2)</label>
    <mml:math>
    <mml:mrow>...</mml:mrow>
    </mml:math>
    </disp-formula>

    <disp-formula  id="formula-qf-3">
    <label>(3)</label>
    <mml:math>
    <mml:mrow>...</mml:mrow>
    </mml:math>
    </disp-formula>
    </disp-formula-group>
    </sec>
    ...

## Module

JATS-math0.ent

## ISO Standards Tag Set (ISOSTS) version 0.5: A customization of NISO JATS version 0.4

#### Version of September 2011