A PDF file created by bookcmd=render_article&writer=rdf2latex contains a lot of errors. This task replaces T121349 detail #1.
Most formulas should be indented by <p style="margin-left:4.5em;"> but aren't. See the [[ https://de.wikibooks.org/wiki/Komplexe_Zahlen/_Vorlage:Formel | formula template ]].
Look at **error #1** on page 1 e.g. in appendix 2.
**How to check the problem**
# MathML in user preferences / appearance.
# [[ https://de.wikibooks.org/w/index.php?title=Komplexe_Zahlen/_Darstellungsformen&oldid=776470 | de-Wikibooks chapter ]] "Komplexe_Zahlen/_Darstellungsformen" - the requested page (Internet Explorer 11 isn't able to show correct formulas using MathML)
# Use Print/Preview/Print of the browser (here: Firefox 42.0) - every part of the page is printed correctly (IE isn't able to show any formulas)
# Use [[ https://de.wikibooks.org/w/index.php?title=Spezial:Buch&bookcmd=render_article&arttitle=Komplexe+Zahlen%2F+Darstellungsformen&oldid=776470&writer=rdf2latex | Special:Book render_article rdf2latex ]] and store the created pdf file.
# Appendix 1 F3079535 is the created pdf file without any change.
# Appendix 2 F3079554 shows the error described above.
Multiple occurrencies of the same fault aren't marked normally. More errors are described in other tasks. (In appendix 2 there are additional faults caused by convertion to OpenOfficeGraph odg but irrelevant to MediaWiki problems.)