\documentclass[10pt,a4paper,final,makeidx,twosides]{article} \usepackage{amsmath} \usepackage{tabularx} \usepackage{ulem} \usepackage{boxedminipage} \usepackage{listings} \usepackage{caption} %\captionsetup{figurename=Figure, tablename=Table} \renewcommand{\captionfont}{\small} \renewcommand{\captionlabelfont}{\bfseries} \usepackage[protrusion=true,draft=false,final,verbose=true,babel=true]{microtype} \def\dashuline{\bgroup \ifdim\ULdepth=\maxdimen % Set depth based on font, if not set already \settodepth\ULdepth{(j}\advance\ULdepth.4pt\fi \markoverwith{\kern.15em \vtop{\kern\ULdepth \hrule width .3em}% \kern.15em}\ULon} \def\dotuline{\bgroup \ifdim\ULdepth=\maxdimen % Set depth based on font, if not set already \settodepth\ULdepth{(j}\advance\ULdepth.4pt\fi \markoverwith{\begingroup \advance\ULdepth0.08ex \lower\ULdepth\hbox{\kern.15em .\kern.1em}% \endgroup}\ULon} \makeatletter \newcommand{\ack}[1]{\let\save@makefntext\@makefntext% \def\@makefntext##1{\parindent0em##1}\footnotetext{#1}% \let\@makefntext\save@makefntext} \makeatother \title{The \textbf{bigints} package} \author{Merciadri Luca} \date{\today} \usepackage{makeidx} %% - HYPERREF PACKAGE - ** MUST be LAST ONE ** \usepackage[a4paper,bookmarks=true,bookmarksnumbered=true,bookmarksopen=true,bookmarksopenlevel=1,breaklinks=true,colorlinks=true,final,menucolor=red,pdfauthor={Merciadri Luca},pdfcreator={Merciadri Luca},pdfkeywords={math},pdftitle={The bigints package},pdfsubject={(La)TeX},pdftoolbar=true]{hyperref} \hypersetup{urlcolor=red,linkcolor=blue,citecolor=blue,colorlinks=true} \usepackage{breakurl} %% -- INDEX GENERATION ACTIVATION -- \makeindex %% -- INDEX GENERATION ACTIVATION -- \makeatletter \newcommand{\bigint}{\@ifnextchar_\@bigintsub\@bigintnosub} \def\@bigintsub_#1{\def\@int@subscript{#1}\@ifnextchar^\@bigintsubsup\@bigintsubnosup} \def\@bigintsubsup^#1{\mathop{\text{\Huge$\int_{\text{\normalsize$\scriptstyle\kern-0.35em\@int@subscript$}}^{\text{\normalsize$\scriptstyle#1$}}$}}\nolimits} \def\@bigintsubnosup{\mathop{\text{\Huge$\int_{\text{\normalsize$\scriptstyle\@int@subscript$}}$}}\nolimits} \def\@bigintnosub{\@ifnextchar^\@bigintnosubsup\@bigintnosubnosup} \def\@bigintnosubsup^#1{\mathop{\text{\Huge$\int^{\text{\normalsize$\scriptstyle#1$}}$}}\nolimits} \def\@bigintnosubnosup{\mathop{\text{\Huge$\int$}}\nolimits} \newcommand{\bigints}{\@ifnextchar_\@bigintssub\@bigintsnosub} \def\@bigintssub_#1{\def\@int@subscript{#1}\@ifnextchar^\@bigintssubsup\@bigintssubnosup} \def\@bigintssubsup^#1{\mathop{\text{\huge$\int_{\text{\normalsize$\scriptstyle\kern-0.35em\@int@subscript$}}^{\text{\normalsize$\scriptstyle#1$}}$}}\nolimits} \def\@bigintssubnosup{\mathop{\text{\huge$\int_{\text{\normalsize$\scriptstyle\@int@subscript$}}$}}\nolimits} \def\@bigintsnosub{\@ifnextchar^\@bigintsnosubsup\@bigintsnosubnosup} \def\@bigintsnosubsup^#1{\mathop{\text{\huge$\int^{\text{\normalsize$\scriptstyle#1$}}$}}\nolimits} \def\@bigintsnosubnosup{\mathop{\text{\huge$\int$}}\nolimits} \newcommand{\bigintss}{\@ifnextchar_\@bigintsssub\@bigintssnosub} \def\@bigintsssub_#1{\def\@int@subscript{#1}\@ifnextchar^\@bigintsssubsup\@bigintsssubnosup} \def\@bigintsssubsup^#1{\mathop{\text{\LARGE$\int_{\text{\normalsize$\scriptstyle\kern-0.25em\@int@subscript$}}^{\text{\normalsize$\scriptstyle#1$}}$}}\nolimits} \def\@bigintsssubnosup{\mathop{\text{\LARGE$\int_{\text{\normalsize$\scriptstyle\@int@subscript$}}$}}\nolimits} \def\@bigintssnosub{\@ifnextchar^\@bigintssnosubsup\@bigintssnosubnosup} \def\@bigintssnosubsup^#1{\mathop{\text{\LARGE$\int^{\text{\normalsize$\scriptstyle#1$}}$}}\nolimits} \def\@bigintssnosubnosup{\mathop{\text{\LARGE$\int$}}\nolimits} \newcommand{\bigintsss}{\@ifnextchar_\@bigintssssub\@bigintsssnosub} \def\@bigintssssub_#1{\def\@int@subscript{#1}\@ifnextchar^\@bigintssssubsup\@bigintssssubnosup} \def\@bigintssssubsup^#1{\mathop{\text{\Large$\int_{\text{\normalsize$\scriptstyle\kern-0.20em\@int@subscript$}}^{\text{\normalsize$\scriptstyle#1$}}$}}\nolimits} \def\@bigintssssubnosup{\mathop{\text{\Large$\int_{\text{\normalsize$\scriptstyle\@int@subscript$}}$}}\nolimits} \def\@bigintsssnosub{\@ifnextchar^\@bigintsssnosubsup\@bigintsssnosubnosup} \def\@bigintsssnosubsup^#1{\mathop{\text{\Large$\int^{\text{\normalsize$\scriptstyle#1$}}$}}\nolimits} \def\@bigintsssnosubnosup{\mathop{\text{\Large$\int$}}\nolimits} \newcommand{\bigintssss}{\@ifnextchar_\@bigintsssssub\@bigintssssnosub} \def\@bigintsssssub_#1{\def\@int@subscript{#1}\@ifnextchar^\@bigintsssssubsup\@bigintsssssubnosup} \def\@bigintsssssubsup^#1{\mathop{\text{\large$\int_{\text{\normalsize$\scriptstyle\kern-0.15em\@int@subscript$}}^{\text{\normalsize$\scriptstyle#1$}}$}}\nolimits} \def\@bigintsssssubnosup{\mathop{\text{\large$\int_{\text{\normalsize$\scriptstyle\@int@subscript$}}$}}\nolimits} \def\@bigintssssnosub{\@ifnextchar^\@bigintssssnosubsup\@bigintssssnosubnosup} \def\@bigintssssnosubsup^#1{\mathop{\text{\large$\int^{\text{\normalsize$\scriptstyle#1$}}$}}\nolimits} \def\@bigintssssnosubnosup{\mathop{\text{\large$\int$}}\nolimits} \newcommand{\bigoint}{\@ifnextchar_\@bigointsub\@bigointnosub} \def\@bigointsub_#1{\def\@oint@subscript{#1}\@ifnextchar^\@bigointsubsup\@bigointsubnosup} \def\@bigointsubsup^#1{\mathop{\text{\Huge$\oint_{\text{\normalsize$\scriptstyle\kern-0.35em\@oint@subscript$}}^{\text{\normalsize$\scriptstyle#1$}}$}}\nolimits} \def\@bigointsubnosup{\mathop{\text{\Huge$\oint_{\text{\normalsize$\scriptstyle\@oint@subscript$}}$}}\nolimits} \def\@bigointnosub{\@ifnextchar^\@bigointnosubsup\@bigointnosubnosup} \def\@bigointnosubsup^#1{\mathop{\text{\Huge$\oint^{\text{\normalsize$\scriptstyle#1$}}$}}\nolimits} \def\@bigointnosubnosup{\mathop{\text{\Huge$\oint$}}\nolimits} \newcommand{\bigoints}{\@ifnextchar_\@bigointssub\@bigointsnosub} \def\@bigointssub_#1{\def\@oint@subscript{#1}\@ifnextchar^\@bigointssubsup\@bigointssubnosup} \def\@bigointssubsup^#1{\mathop{\text{\huge$\oint_{\text{\normalsize$\scriptstyle\kern-0.35em\@oint@subscript$}}^{\text{\normalsize$\scriptstyle#1$}}$}}\nolimits} \def\@bigointssubnosup{\mathop{\text{\huge$\oint_{\text{\normalsize$\scriptstyle\@oint@subscript$}}$}}\nolimits} \def\@bigointsnosub{\@ifnextchar^\@bigointsnosubsup\@bigointsnosubnosup} \def\@bigointsnosubsup^#1{\mathop{\text{\huge$\oint^{\text{\normalsize$\scriptstyle#1$}}$}}\nolimits} \def\@bigointsnosubnosup{\mathop{\text{\huge$\oint$}}\nolimits} \newcommand{\bigointss}{\@ifnextchar_\@bigointsssub\@bigointssnosub} \def\@bigointsssub_#1{\def\@oint@subscript{#1}\@ifnextchar^\@bigointsssubsup\@bigointsssubnosup} \def\@bigointsssubsup^#1{\mathop{\text{\LARGE$\oint_{\text{\normalsize$\scriptstyle\kern-0.25em\@oint@subscript$}}^{\text{\normalsize$\scriptstyle#1$}}$}}\nolimits} \def\@bigointsssubnosup{\mathop{\text{\LARGE$\oint_{\text{\normalsize$\scriptstyle\@oint@subscript$}}$}}\nolimits} \def\@bigointssnosub{\@ifnextchar^\@bigointssnosubsup\@bigointssnosubnosup} \def\@bigointssnosubsup^#1{\mathop{\text{\LARGE$\oint^{\text{\normalsize$\scriptstyle#1$}}$}}\nolimits} \def\@bigointssnosubnosup{\mathop{\text{\LARGE$\oint$}}\nolimits} \newcommand{\bigointsss}{\@ifnextchar_\@bigointssssub\@bigointsssnosub} \def\@bigointssssub_#1{\def\@oint@subscript{#1}\@ifnextchar^\@bigointssssubsup\@bigointssssubnosup} \def\@bigointssssubsup^#1{\mathop{\text{\Large$\oint_{\text{\normalsize$\scriptstyle\kern-0.20em\@oint@subscript$}}^{\text{\normalsize$\scriptstyle#1$}}$}}\nolimits} \def\@bigointssssubnosup{\mathop{\text{\Large$\oint_{\text{\normalsize$\scriptstyle\@oint@subscript$}}$}}\nolimits} \def\@bigointsssnosub{\@ifnextchar^\@bigintsssnosubsup\@bigointsssnosubnosup} \def\@bigointsssnosubsup^#1{\mathop{\text{\Large$\oint^{\text{\normalsize$\scriptstyle#1$}}$}}\nolimits} \def\@bigointsssnosubnosup{\mathop{\text{\Large$\oint$}}\nolimits} \newcommand{\bigointssss}{\@ifnextchar_\@bigointsssssub\@bigointssssnosub} \def\@bigointsssssub_#1{\def\@oint@subscript{#1}\@ifnextchar^\@bigointsssssubsup\@bigointsssssubnosup} \def\@bigointsssssubsup^#1{\mathop{\text{\large$\oint_{\text{\normalsize$\scriptstyle\kern-0.15em\@oint@subscript$}}^{\text{\normalsize$\scriptstyle#1$}}$}}\nolimits} \def\@bigointsssssubnosup{\mathop{\text{\large$\oint_{\text{\normalsize$\scriptstyle\@oint@subscript$}}$}}\nolimits} \def\@bigointssssnosub{\@ifnextchar^\@bigointssssnosubsup\@bigointssssnosubnosup} \def\@bigointssssnosubsup^#1{\mathop{\text{\large$\oint^{\text{\normalsize$\scriptstyle#1$}}$}}\nolimits} \def\@bigointssssnosubnosup{\mathop{\text{\large$\oint$}}\nolimits} \makeatother \begin{document} \maketitle \tableofcontents \newpage \section{Introduction} This package (\verb v1.1 ) \textit{helps you to} write big integrals when needed. For example, you may want to write standard integrals before a matrix, but if you find them too small, you can use bigger integrals thanks to this package. \section{Use} \subsection{Loading the Package} To \textit{load the package}, please use \begin{center} \begin{verbatim} \usepackage{bigints} \end{verbatim} \end{center} Please note that this package loads the package `\verb amsmath .' Consequently, you do not need to load \verb amsmath ~after having called \verb bigints . \subsection{Available Options} The set of options is currently empty. \newpage \section{Examples} \subsection{Possible Calls} Possible function calls are listed at Table \ref{tab:exuse}. \begin{table}[!h] \begin{center} \begin{tabular}{ccc} Integral's command & Standard command & Integral's command's output\\ \hline \texttt{\textbackslash bigint} & $\displaystyle\int$ & $\displaystyle\bigint$\\ \texttt{\textbackslash bigints} & $\displaystyle\int$ & $\displaystyle\bigints$\\ \texttt{\textbackslash bigintss} & $\displaystyle\int$ & $\displaystyle\bigintss$\\ \texttt{\textbackslash bigintsss} & $\displaystyle\int$ & $\displaystyle\bigintsss$\\ \texttt{\textbackslash bigintssss} & $\displaystyle\int$ & $\displaystyle\bigintssss$\\ \texttt{\textbackslash bigoint} & $\displaystyle\oint$ & $\displaystyle\bigoint$\\ \texttt{\textbackslash bigoints} & $\displaystyle\oint$ & $\displaystyle\bigoints$\\ \texttt{\textbackslash bigointss} & $\displaystyle\oint$ & $\displaystyle\bigointss$\\ \texttt{\textbackslash bigointsss} & $\displaystyle\oint$ & $\displaystyle\bigointsss$\\ \texttt{\textbackslash bigointssss} & $\displaystyle\oint$ & $\displaystyle\bigointssss$\\ \end{tabular} \caption{Possible calls of this package.} \label{tab:exuse} \end{center} \index{\texttt{bigint}} \index{\texttt{bigints}} \index{\texttt{bigintss}} \index{\texttt{bigintsss}} \index{\texttt{bigintssss}} \index{\texttt{bigoint}} \index{\texttt{bigoints}} \index{\texttt{bigointss}} \index{\texttt{bigointsss}} \index{\texttt{bigointssss}} \end{table} \subsection{Practical Examples} \subsubsection{Matrices With Five Rows} Compare \[ \int_{t_i}^{t_f}\begin{pmatrix}\frac{a(1-b)-cd-e \frac{\mathrm dW_s}{\mathrm dt}}{k}\\ f-gh\\ -i+j k+l\\ -m+n\\ m-n \end{pmatrix}\,\mathrm dt\quad\text{~to~}\quad\bigint_{t_i}^{t_f}\begin{pmatrix}\frac{a(1-b)-cd-e \frac{\mathrm dW_s}{\mathrm dt}}{k}\\ f-gh\\ -i+j k+l\\ -m+n\\ m-n \end{pmatrix}\,\mathrm dt. \] To achieve \begin{center} \begin{boxedminipage}{\textwidth} \[ \bigint_{t_i}^{t_f}\begin{pmatrix}\frac{a(1-b)-cd-e \frac{\mathrm dW_s}{\mathrm dt}}{k}\\ f-gh\\ -i+j k+l\\ -m+n\\ m-n \end{pmatrix}\,\mathrm dt \] \end{boxedminipage} \end{center} you simply need to use \verb \bigint ~at the place of \verb \int ~before the matrix. \subsubsection{Matrices With Four Rows} Compare \[ \int_{t_i}^{t_f}\begin{pmatrix}\frac{a(1-b)-cd-e \frac{\mathrm dW_s}{\mathrm dt}}{k}\\ f-gh\\ -i+j k+l\\ -m+n\end{pmatrix}\,\mathrm dt\quad\text{~to~}\quad\bigints_{t_i}^{t_f}\begin{pmatrix}\frac{a(1-b)-cd-e \frac{\mathrm dW_s}{\mathrm dt}}{k}\\ f-gh\\ -i+j k+l\\ -m+n \end{pmatrix}\,\mathrm dt. \] To achieve \begin{center} \begin{boxedminipage}{\textwidth} \[ \bigints_{t_i}^{t_f}\begin{pmatrix}\frac{a(1-b)-cd-e \frac{\mathrm dW_s}{\mathrm dt}}{k}\\ f-gh\\ -i+j k+l\\ -m+n \end{pmatrix}\,\mathrm dt \] \end{boxedminipage} \end{center} you simply need to use \verb \bigints ~at the place of \verb \int ~before the matrix. \subsubsection{Matrices With Three Rows} Compare \[ \int_{t_i}^{t_f}\begin{pmatrix}\frac{a(1-b)-cd-e \frac{\mathrm dW_s}{\mathrm dt}}{k}\\ f-gh\\ -i+j k+l \end{pmatrix}\,\mathrm dt\quad\text{~to~}\quad\bigintss_{t_i}^{t_f}\begin{pmatrix}\frac{a(1-b)-cd-e \frac{\mathrm dW_s}{\mathrm dt}}{k}\\ f-gh\\ -i+j k+l \end{pmatrix}\,\mathrm dt. \] To achieve \begin{center} \begin{boxedminipage}{\textwidth} \[ \bigintss_{t_i}^{t_f}\begin{pmatrix}\frac{a(1-b)-cd-e \frac{\mathrm dW_s}{\mathrm dt}}{k}\\ f-gh\\ -i+j k+l \end{pmatrix}\,\mathrm dt \] \end{boxedminipage} \end{center} you simply need to use \verb \bigintss ~at the place of \verb \int ~before the matrix. \subsubsection{Matrices With Two Rows} Compare \[ \int_{t_i}^{t_f}\begin{pmatrix}\frac{a(1-b)-cd-e \frac{\mathrm dW_s}{\mathrm dt}}{k}\\ f-gh \end{pmatrix}\,\mathrm dt\quad\text{~to~}\quad\bigintsss_{t_i}^{t_f}\begin{pmatrix}\frac{a(1-b)-cd-e \frac{\mathrm dW_s}{\mathrm dt}}{k}\\ f-gh \end{pmatrix}\,\mathrm dt. \] To achieve \begin{center} \begin{boxedminipage}{\textwidth} \[ \bigintsss_{t_i}^{t_f}\begin{pmatrix}\frac{a(1-b)-cd-e \frac{\mathrm dW_s}{\mathrm dt}}{k}\\ f-gh \end{pmatrix}\,\mathrm dt \] \end{boxedminipage} \end{center} you simply need to use \verb \bigintsss ~at the place of \verb \int ~before the matrix. \subsubsection{Matrices With One Row} Compare \[ \int_{t_i}^{t_f}\begin{pmatrix}\frac{a(1-b)-cd-e \frac{\mathrm dW_s}{\mathrm dt}}{k} \end{pmatrix}\,\mathrm dt\quad\text{~to~}\quad\bigintsss_{t_i}^{t_f}\begin{pmatrix}\frac{a(1-b)-cd-e \frac{\mathrm dW_s}{\mathrm dt}}{k} \end{pmatrix}\,\mathrm dt. \] To achieve \begin{center} \begin{boxedminipage}{\textwidth} \[ \bigintssss_{t_i}^{t_f}\begin{pmatrix}\frac{a(1-b)-cd-e \frac{\mathrm dW_s}{\mathrm dt}}{k} \end{pmatrix}\,\mathrm dt \] \end{boxedminipage} \end{center} you simply need to use \verb \bigintssss ~at the place of \verb \int ~before the matrix. This is here a matter of taste, as both symbols are typographically acceptable. \paragraph{} The same concept can be used for integrals on closed contours, such as the standard \verb \oint . You simply need to use \verb \bigoint , \verb \bigoints , \verb \bigointss , \verb \bigointsss ~and \verb \bigointssss . \newpage \section{Implementation} Here is the code of \verb bigints.sty : \lstset{language=TEX, basicstyle=\tiny, keywordstyle=\bfseries, commentstyle=\itshape, keywords={}, emph={}, emphstyle=\bfseries, numbers=left, stringstyle=\ttseries, showstringspaces=false, stepnumber=2, numbersep=5pt, showspaces=false, showtabs=false, backgroundcolor=\color{white}} %\begin{lstlisting}[frame=single] \lstinputlisting[lastline=95]{bigints.forlisting} %\end{lstlisting} %\newpage \section{Limitations} This package has currently no limitation. \section{Remarks} Not yet. \section{Bugs} Not yet. \section{Version History} \begin{enumerate} \item \verb v1.0 : package is introduced to the \LaTeX{} world, \item \verb v1.1 : new commands (\verb \bigoint , \verb \bigoints , \verb \bigointss , \verb \bigointsss ~and \verb \bigointssss ) are available. \end{enumerate} \section{Contact} If you have any question concerning this package (limitations, bugs, \ldots), please contact me at \href{mailto:Luca.Merciadri@student.ulg.ac.be}{Luca.Merciadri@student.ulg.ac.be}. \section{Credits} Thanks to \verb pg ~for his related trick, in the message on \begin{center} \url{http://www.les-mathematiques.net/phorum/read.php?10,472951}. \end{center} \newpage \phantomsection \printindex \end{document}