I would like to include abovedisplayskip in my preamble, but it seems to me as if it would only work within the document-environment. In addition I noticed strange correlations, see MWE. An empty line before abovedisplayskip, or normalsize afterwards seem to disable abovedisplayskip... Does anybody know why?
Is it possible to set \abovedisplayskip or anything similar in the preamble so that it is valid for the whole code?
Code: Select all
\documentclass{article}
\usepackage{blindtext}
\setlength{\abovedisplayskip}{40pt} % no effect
\begin{document}
\blindtext
\begin{equation}
a=b+c
\end{equation}
\setlength{\abovedisplayskip}{40pt} % no effect due to empty line
\blindtext
\begin{equation}
a=b+c
\end{equation}
\blindtext
\setlength{\abovedisplayskip}{40pt} % works
\begin{equation}
a=b+c
\end{equation}
\normalsize % disables abovedisplayskip
\blindtext
\begin{equation}
a=b+c
\end{equation}
\blindtext
\end{document}
