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LaTeX

Noter fra et foredrag om LaTeX.

Et LaTeX-dokument

Det følgende er et udklip fra en fil med en artikel skrevet i LaTeX. Den indeholder de fleste af eksemplerne der blev omtalt i foredraget.


\documentclass[aps,prl,preprint,groupedaddress]{revtex4}

  \usepackage{epsfig}

  \newcommand{\delete}[1]{{}}
  \newcommand{\visible}[1]{{#1}}

\begin{document}
  \delete{
    (particle positions are determined using spot on three or four of
    the images from the four cameras - whenever, following a particle
    in time, a changes occur in which of the cameras were used to
    calculate the particle position, we cut the track and relabel the
    particle as a different one before and after the change)
  }

  In order to work around this problem Sawford has constructed a
  stochastic model for Lagrangian velocity structure
  functions~\cite{Sawford_on_Lagrangian_Reynolds_number}.  In his
  paper on the model he fixes the free parameters of the model using
  results from direct numerical simulations of the Navier-Stokes
  equations.  In figure~\ref{figure:velocity structure function tops}
  we compare a numerical solution for $C_0^*(R_{\lambda})$ with our
  experimental results and with simulations by Yeung and Pope.

  \begin{table}
    \begin{center}
      \begin{tabular}{c|cc}
        Data-set & $R_{\lambda}$ & $C_0^{*}$ \\
        \hline
        Present  &       95      &    3.66   \\
        Present  &       93      &    3.51   \\
        Present  &       84      &    3.20   \\
        Present  &      106      &    3.76   \\
        Present  &       97      &    3.59   \\
        Present  &       80      &    3.49   \\
        DNS      &       93      &    4.1    \\
        DNS      &       90      &    3.7    \\
        DNS      &       63      &    3.1    \\
        DNS      &       38      &    2.6    \\
      \end{tabular}
    \end{center}

    \caption{
      The top values of the rescaled second order Lagrangian velocity
      structure function for different data-sets. {\em Present} refers
      to the six data-sets presented in this article, and {\em DNS}
      refers to the four computer simulation based data-sets discussed
      in~\cite{Lagrangian_statistics_from_DNS,Sawford_on_Lagrangian_Reynolds_number,lagrangian_pdf_methods}
      The last four values were read of figure 10
      in~\cite{lagrangian_pdf_methods}.
    }
    \label{table:LS_2-toppe}
  \end{table}

  The values are shown in table~\ref{table:LS_2-toppe} ...

  \begin{acknowledgments}
    We are grateful to ... for comments and
    discussions and to The Danish Research Academy and The Danish
    Technical Research Council (STVF-9601244 and 26-01-0087) for
    financial support.
  \end{acknowledgments}

  \bibliography{bibliography}
\end{document}

En litteraturliste

Programmet `bibtex` gør at man kan have en samlet liste med alle de artikler og bøger man kan få brug for at referere til. Bibtex trækker de henvisninger der er i et LaTeX-dokument ud og laver en litteraturliste til dokumentet med lige netop de artikler.

Man indsætter en henvisning til en artikel med "cite":

In order to work around this problem Sawford has constructed a stochastic model for Lagrangian velocity structure functions~\cite{Sawford_on_Lagrangian_Reynolds_number}.

Her er der et eksempel på en litteraturliste ("bibliography.bib"):


% Name:  Jacob Sparre Andersen
% Title: Bibliography
% URL:   http://www.nbi.dk/~sparre/
% Email: sparre%nbi.dk

%%% Numerics %%%

@book{Numerical_Recipes,
   author    = "William H.~Press and
                William T.~Vetterling and
                Saul A.~Teukolsky and
                Brian P.~Flannery",
   title     = "Numerical Recipes",
   edition   = "2nd",
   publisher = "Cambridge University Press",
   year      = "1992"
}

@book{3nabog,
   author    = "David R.~Kincaid and E.~Ward Cheney",
   title     = "Numerical analysis: mathematics of scientific computing",
   publisher = "Brooks/Cole",
   year      = 1991
}

%%% Turbulence %%%

@phdthesis{Frédérics_phd-afhandling,
   title     = "Etude expérimentale des fluctuations de vitesse, de
                température et de pression en turbulence développée",
   author    = "Frédéric Moisy",
   school    = "Université Paris 6",
   year      = "2000"
}

@article{lagrangian_pdf_methods,
   author    = "S.~B.~Pope",
   title     = "{L}agrangian PDF Methods for Turbulent Flows",
   journal   = "Annu. Rev. Fluid Mech.",
   volume    = "26",
   pages     = "23--63",
   year      = "1994"
}

@misc{Jens_om_stabilitet_af_NS,
   author = "Jens Bundgård",
   year = 1996,
   title = "Hør Jens om stabiliteten af NS-ligningen."}
   howpublished = "Snak"}

Indholdsfortegnelse og stikordsregister

Nyt afsnit (ikke i indholdsfortegnelse):

  \section*{Foreword}

Nyt afsnit (i indholdsfortegnelse):

  \section{Richardson and Kolmogorov}

Stikord til stikordsregistret:

converts the mechanical energy into heat. The part of this range of length scales where energy spectrum shows power-law behaviour, is today called the inertial range\index{inertial range}\index{range!inertial}.

Formler

  \begin{equation}
    K \propto l^{\frac{4}{3}}
  \end{equation}

  You could also just write $K \propto l^{\frac{4}{3}}$.

  \begin{eqnarray}
    \langle\delta{v}_{\parallel}^2(r)\rangle
      & = & C_K (\epsilon r)^{\frac{2}{3}} 
    \label{Equation:Kolmogorov 2nd order longitudinal structure function}
    \\
    \langle\delta{v}_{\perp}^2(r)\rangle
      & = & \frac{4}{3} \langle\delta{v}_{\parallel}^2(r)\rangle
    \label{Equation:Kolmogorov 2nd order transversal structure function}
  \end{eqnarray}

bliver til

[formler]

Læsestof

Jeg har bogen The LaTeX Companion liggende på mit skrivebord. Derudover er nyhedsgruppen <news://news.sslug.dk/sslug.dok> et godt sted at stille spørgsmål om LaTeX.

Diverse

Flytte noget tre millimeter ned:

   \vspace{3mm}

Pakken "epsfig" tillader at man indsætter Postscript-filer i sit LaTeX-dokument.

Æ, ø og å (og den slags) kan både skrives med koder i et 7-bit ISO-646-format:

von K\'{a}rm\'{a}n

og som almindelig 8-bit ISO-8859-1:

von Kármán

For de fleste dokumenttyper er det nødvendigt at indsætte følgende oppe i dokumenthovedet:

\usepackage[latin1]{inputenc}
\usepackage[danish]{babel}
\usepackage[T1]{fontenc}

(hvor "danish" selvfølgelig kan udskiftes med et andet sprog efter behov), hvis der skal bruges ISO-8859-1.

Tux was here

 
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