informalequation — A displayed mathematical equation without a title
An InformalEquation
is usually a mathematical equation or a
group of related mathematical equations.
These elements contain informalequation
: annotation
, answer
, appendix
, article
, bibliodiv
, bibliography
, bibliolist
, blockquote
, callout
, calloutlist
, caption
(db.caption), caution
, chapter
, colophon
, constraintdef
, dedication
, entry
, example
, figure
, footnote
, glossary
, glossdef
, glossdiv
, glosslist
, html:fieldset
, html:form
, important
, index
, indexdiv
, informalexample
, informalfigure
, itemizedlist
, legalnotice
, 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
, td
, textobject
, th
, tip
, toc
, tocdiv
, variablelist
, warning
.
The following elements occur in informalequation: alt
, caption
(db.caption), info
(db.titleforbidden.info), mathphrase
, mediaobject
, mml:*
.
equation
, example
, figure
, informalexample
, informalfigure
, informaltable
, inlineequation
, subscript
, superscript
, table
<article xmlns='http://docbook.org/ns/docbook'> <title>Example informalequation</title> <para>The equation <informalequation> <!-- <alt>e^(pi*i) + 1 = 0</alt> --> <mediaobject> <imageobject> <imagedata fileref="figures/epi10.png"/> </imageobject> </mediaobject> </informalequation> is delightful because it joins together five of the most important mathematical constants. </para> </article>
The equation