%%
%% The LaTeX Companion, 2ed (second printing August 2004)
%%
%% Example 8-4-6 on page 492.
%%
%% Copyright (C) 2004 Frank Mittelbach, Michel Goossens,
%%    Johannes Braams, David Carlisle, and Chris Rowley
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3
%% of this license or (at your option) any later version.
%%
%% See http://www.latex-project.org/lppl.txt for details.
%%

\documentclass{ttctexa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{135.0pt}

\StartShownPreambleCommands
\usepackage{amsmath}
\StopShownPreambleCommands
\begin{document}
\begin{gather*}
 \iint     \limits _V \mu(v,w)
   \,du \,dv                      \\
 \iiint    \limits _V \mu(u,v,w)
   \,du \,dv \,dw                 \\
 \iiiint   \limits _V \mu(t,u,v,w)
   \,dt \,du \,dv \,dw            \\
 \idotsint \limits _V \mu(z_1, \dots, z_k)
   \,\mathbf{dz}
\end{gather*}
\end{document}