informalequation

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informalequation — A displayed mathematical equation without a title

Synopsis

Content Model

informalequation ::=
(blockinfo?,
 (alt?,
  (graphic+|mediaobject+|mathphrase+)))

Attributes

Common attributes

Name	Type	Default
floatstyle	CDATA	None

Description

An InformalEquation is usually a mathematical equation or a group of related mathematical equations.

Processing expectations

Formatted as a displayed block.

Note

It is an error to supply a title in the blockinfo for an informal example.

Parents

These elements contain informalequation: answer, appendix, article, bibliodiv, bibliography, blockquote, callout, caution, chapter, constraintdef, equation, example, figure, footnote, glossary, glossdef, glossdiv, important, index, indexdiv, informalexample, informalfigure, itemizedlist, listitem, msgexplan, msgtext, note, orderedlist, para, partintro, preface, procedure, qandadiv, qandaset, question, refsect1, refsect2, refsect3, refsection, refsynopsisdiv, revdescription, sect1, sect2, sect3, sect4, sect5, section, setindex, sidebar, simplesect, step, taskprerequisites, taskrelated, tasksummary, tip, variablelist, warning.

Children

The following elements occur in informalequation: alt, blockinfo, graphic, mathphrase, mediaobject.

Examples

<!DOCTYPE para PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
          "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
<para>
The equation 
<informalequation>
  <alt>e^(pi*i) + 1 = 0</alt>
  <graphic fileref="figures/epi10.png"/>
</informalequation>
is delightful because it joins together five of the most
important mathematical constants.
</para>

The equation

is delightful because it joins together five of the most important mathematical constants.

For additional examples, see also mml-math.


indexterm		informalexample