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My equation number is being placed directly below my equation, so close they're almost touching and it looks really bad. Is there any way that I can get it to move down a little bit? Here's a picture.

the problem

My code

\documentclass{report}

\usepackage{amsmath}

\begin{document}

\chapter{A chapter}
\section{A section}
\subsection{A subsection}

The elementary solution is

\begin{equation}
f(\cosh(\rho_{H}(z,w))=k(z,w)=%
\frac{%
e^{-t/4}\sqrt{2}}{(4\pi{}t)^{3/2}}\int_{\rho_{H}(z,w)}^{\infty}{\frac{be^{-b^{-2}/4t}db}{%
\sqrt{\cosh(b)-\cosh(\rho_{H}(z,w))}}}.
\end{equation}

Further text.

\end{document}
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1 Answer 1

up vote 7 down vote accepted

output

Please always post complete documents not just fragments, as the setting depends on the class used as much as the equation.

You can add a rule to force the number down, or perhaps better set the equation on more than one line. As @egreg notes if you are using AMS environments (but apparently not equation) you can use \raisetag to lower the number.

\documentclass{article}

\usepackage{amsmath}

\begin{document}

\setcounter{equation}{50}

\begin{equation}
f(\cosh(\rho_{H}(z,w))=k(z,w)=
\frac{e^{-t/4}\sqrt{2}}{(4\pi{}t)^{3/2}}\int_{\rho_{H}(z,w)}^{\infty}{\frac{be^{-b^{-2}/4t}db}{\sqrt{\cosh(b)-\cosh(\rho_{H}(z,w))}}}.
\end{equation}

\begin{equation}
f(\cosh(\rho_{H}(z,w))=k(z,w)=
\frac{e^{-t/4}\sqrt{2}}{(4\pi{}t)^{3/2}}\int_{\rho_{H}(z,w)}^{\infty}{\frac{be^{-b^{-2}/4t}db}{\sqrt{\cosh(b)-\cosh(\rho_{H}(z,w))}}}.\rule[-1.5em]{0pt}{0pt}
\end{equation}

\begin{gather}
f(\cosh(\rho_{H}(z,w))=k(z,w)=
\frac{e^{-t/4}\sqrt{2}}{(4\pi{}t)^{3/2}}\int_{\rho_{H}(z,w)}^{\infty}{\frac{be^{-b^{-2}/4t}db}{\sqrt{\cosh(b)-\cosh(\rho_{H}(z,w))}}}.
\raisetag{-.5em}
\end{gather}

\begin{multline}
f(\cosh(\rho_{H}(z,w))=k(z,w)=\\
\frac{e^{-t/4}\sqrt{2}}{(4\pi{}t)^{3/2}}\int_{\rho_{H}(z,w)}^{\infty}{\frac{be^{-b^{-2}/4t}db}{\sqrt{\cosh(b)-\cosh(\rho_{H}(z,w))}}}.
\end{multline}

\end{document}
share|improve this answer
    
Thanks very much for your answer. Sorry I've edited my question. Working in the report class. –  mark Mar 7 '13 at 20:35
    
amsmath provides \raisetag for moving the equation number up or, as asked here, down. –  egreg Mar 7 '13 at 20:53
    
@egreg so it does, actually in my defence I only added amsmath after the rule example to demonstrate multline. –  David Carlisle Mar 7 '13 at 20:54
    
It appears that \raisetag is somewhat buggy: the equation number protrudes into the right margin! (Ping, @egreg.) –  Hendrik Vogt Mar 7 '13 at 21:29
1  
@HendrikVogt -- yes, e-mail is indeed what i meant. thanks. and regarding one-line equations, this is another reason we recommend not to use align with just one line. but some people are lazy. –  barbara beeton Mar 8 '13 at 15:19

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