[Tex/LaTex] Too much space between full paragraph and subequations env

amsmathspacing

I have a document using subequations and the parskip package. If the paragraph before a subequations environment is completely filled up to the last line, then additional vertical whitespace is introduced between this paragraph and the following subequations. I guess this is a bug, but I'm not sure, nor do I have enough TeX knowledge to try and fix it. How can I fix this whitespace issue?

Below is a MWE which shows the behaviour, at least on LaTeX2e <2003/12/01> with pdfeTeX 3.141592-1.21a-2.2 (unfortunately on this machine only an old tetex distribution is installed).

\documentclass[a4paper,11pt]{article}

\usepackage{parskip}
\usepackage{amsmath}

\begin{document}

The subequations environment provides a convenient way to number a foos
\begin{subequations}\label{foo}
  \begin{align}
    x^2 + y^2 &= z^2\\
    a &= b + c
  \end{align}
\end{subequations}

\end{document}

Best Answer

The problem is that the space after foos does not disappear at the line break, because of the \begin{subequations} that follows (I don't know exactly why).

Use \begin{subequations} between paragraphs, or say

\usepackage{etoolbox}
\preto\subequations{\ifhmode\unskip\fi}

In daleif's example the problem is the same: a space remains and makes a new line in the paragraph. However a \label there is only for \pageref usage, so it must be attached to a word, otherwise the reference can be off by one.

Related Solutions

[Tex/LaTex] Too much space between author and year in apacite citations

This is a bug in apacite that should be reported to its maintainer(s).

apacite defines several punctuation macros like \BBAY for the punctuation between authors and year in a citation. For example, \BBAY is ,, a comma and a space. With the natbibapa option the natbib package is used, and there the punctuation is set set with \bibpunct (among other methods). However, \bibpunct only wants the actual punctuation character, in this case the comma, and sets spaces by itself. So it is apacite's bug to feed \BBAY and the like to \bibpunct.

This can be repaired easily:

\documentclass{report}
\usepackage[natbibapa]{apacite}
\AtBeginDocument{%
\renewcommand{\BBAY}{,}%% punctuation between authors and year
\renewcommand{\BBC}{;}%% punctuation between multiple cites
\renewcommand{\BBYY}{,}%% punctuation between multiple years
}

\bibliographystyle{apacite}
\bibliography{sample}
\begin{document}
    \noindent \citep{bundesen2005,logan1996,logan2001,logan2002}.
\end{document}

Note that apacite has more spacing issues in the reference list, but glancing at the bibliography style they seem to be intended. Also, using the ampersand in the authors list (preceded by a comma no less!) seems odd, too.

sample output

[Tex/LaTex] Too much space between tables

Use a single table environment, containing two tabular environments and two \caption directives. You probably do want some vertical whitespace between the two tabular chunks; if so, a directive such as \vspace{1cm} may achieve that objective.

\documentclass[12pt]{article}
\usepackage{adjustbox}
\begin{document}
\begin{table}[h]
\centering
\adjustbox{max width = \textwidth}{%
\begin{tabular}{ |c|c|c|c|c|c|c|c|c|c|c| } 
\hline
\multicolumn{11}{|c|}{Poisson Distribution}\\
\hline
%data
\hline
\end{tabular}}
\caption{This table shows the probability of the site crashing\slash
not crashing and the number of iterations it took to do so (C/NC).}

\vspace{1cm} % <--- this is new

\adjustbox{max width = \textwidth}{%
\begin{tabular}{ c|c|c|c|c|c|c|c|c|c|c| } 
\hline
\multicolumn{11}{|c|}{Uniform Distribution}\\
\hline
%data
\hline
\end{tabular}}
\caption{This table shows the probability of the site crashing\slash 
not crashing and the number of iterations it took to do so (C/NC).}
\end{table}
\end{document}

Best Answer

Related Solutions

[Tex/LaTex] Too much space between author and year in apacite citations

[Tex/LaTex] Too much space between tables

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