[Tex/LaTex] underfull vbox (badness 10000) with memoir

memoirspacingxetex

Sorry if this question has been asked very often, but I can't easily find an answer to my specific question.

I am using XeLaTeX and the memoir class to produce a rather long document (100 pages) with many sections, some of them less than a page. I get very many underfull vbox errors:

Underfull \vbox (badness 10000) has occurred while \output is active [1]

because the section title sometimes fall on page boundary. This forces XeLaTeX to insert ugly whitespace before section titles (see MWE below). I have seen many tutorials on how to manually fix this, but due to the length of the document and the fact that it is changing often, this is not very productive.

So my question is: Is there a way to tell XeLaTeX to automatically increase interline spacing (or do other tricks) to automatically fix the underfull vbox errors?

MWE below:

\documentclass[a4paper,12pt]{memoir}
\usepackage[hmargin={2.5cm, 2.5cm}, vmargin={3.5cm,3.5cm}, headheight=1.5em]{geometry}
\usepackage{lipsum}
\begin{document}

\chapter{Hello}

\section{Hello1}
\lipsum[2]

\section{Hello2}
\lipsum[3-4]

\section{Hello3}
\lipsum[3]

\end{document}

Best Answer

This is beause memoir runs under \flushbottom and since the Hello3 header is moved to the next page, memoir finds it ideal to do a massive stretch. It has nothing to do with xelatex does the same under pdflatex.

Try adding

\raggedbottomsection

to your preamble, that helps

BTW: memoir has its own build in margin interface

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[Tex/LaTex] underfull \hbox (badness 10000) in paragraph

Inserting \par\vspace{\baselineskip} would provide you with a single line gap between two paragraphs. In the following minimal example, a mock-up of a solution environment adds \par\nobreak\vspace{\baselineskip} after every \begin{solution}{<stuff>} (the \nobreak addition discourages page breaking after printing the environment header). If you don't want it this way, you can add the gap manually by removing \par\vspace{\baselineskip} from the definition of \begin{solution}:

enter image description here

\documentclass{article}
\usepackage{array}% http://ctan.org/pkg/array

\newenvironment{solution}[1] % solution environment
  {\par\textbf{Solution\ #1}:\par\nobreak\vspace{\baselineskip}}% \begin{solution}
  {}% \end{solution}

\begin{document}
\begin{solution}{1.2} % Line 107
  \newlength{\mylen}\settowidth{\mylen}{$p \to q$}% Widest element
  \begin{tabular}{*{5}{|>{\centering\arraybackslash\rule{0pt}{1.05em}}m{\mylen}}|}
    \hline
    $p$ & $q$ & $p \land q$ & $p \lor q$ & $p \to q$\\
    \hline
    T & T & T & T & T \\
    \hline
    T & F & F & T & F \\
    \hline
    F & T & F & T & T \\
    \hline
    F & F & F & F & T \\
    \hline
  \end{tabular}
\end{solution}
\end{document}

You might also consider using \smallskip, \medskip or \bigskip, each of which allows for some stretching/shrinking within the text.

[Tex/LaTex] underfull \vbox

In the abstract it is nearly impossible to give advice on "underfull vbox" messages. They indicate a severe visual problem but often they are acceptable even if the number is high. However, 10000 is a value that should always be visually checked as it means infinitely bad (in TeX's eyes).

Here is the general advice that I give in the LaTeX Companion 2ed on this subject:

enter image description here

Best Answer

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[Tex/LaTex] underfull \hbox (badness 10000) in paragraph

[Tex/LaTex] underfull \vbox

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