# Equation number too close to my equation

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.

My code

\documentclass{report}

\usepackage{amsmath}

\begin{document}

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

The elementary solution is

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

Further text.

\end{document}


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}

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

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

\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}

• 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
• @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