Basics.tex

\section{Basics}

\subsection{Hello, World!}

\begin{frame}[fragile]{Scientific \emph{Hello, World!}}

\begin{columns}

\column{0.65\textwidth}

\input{Pygsnippets/HelloWorld.tex}

\column{0.4\textwidth}

cmp. H.-P. Langtangen, "Python Scripting for Computational Science"\\[1ex]

run with:
\begin{verbatim}
python HelloWorld.py 0.0
\end{verbatim}

\end{columns}

\end{frame}


\subsection{Basic Python}

\begin{frame}[fragile]{Control structures}

\input{Pygsnippets/controlStructures.tex}

\end{frame}

\begin{frame}[fragile]{Functions}

\input{Pygsnippets/Functions.tex}

\end{frame}


\begin{frame}[fragile]{Data types}

\input{Pygsnippets/DataTypes.tex}

\end{frame}


\begin{frame}[fragile]{Files}

\input{Pygsnippets/Files.tex}

\begin{columns}
\column{0.5\textwidth}
{\texttt infile}:
\begin{verbatim}
1.0    2.0
3.0    4.0
\end{verbatim}

\column{0.5\textwidth}

{\texttt outfile}:
\begin{verbatim}
1.0 * 2.0 = 2.0
3.0 * 4.0 = 12.0
\end{verbatim}

\end{columns}

\end{frame}


\subsection{Modules}

\begin{frame}{Reusing code: modules}

Place code to be reused in {\texttt{Module.py:}}

\input{Pygsnippets/Module.tex}

In {\texttt{somewhereElse.py}}, do something like:

\input{Pygsnippets/somewhereElse.tex}

\end{frame}


\subsection{Magic}

\begin{frame}{Some Python magic}

\input{Pygsnippets/magic.tex}

\end{frame}


\begin{frame}{Pitfalls}

$\lightning$ Common pitfalls:

\begin{itemize}
    \item slicing: last index is \emph{exclusive}, not \emph{inclusive} as in e.g. Fortran
    \input{Pygsnippets/Pitfalls1.tex}
    \item What looks like performing an assignment is actually setting a reference:
    \input{Pygsnippets/Pitfalls2.tex}
\end{itemize}

\end{frame}