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\section{Escript and Python Basics} \label{sec:escpybas} |
\section{Escript and Python Basics} \label{sec:escpybas} |
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The \pyt scripting language is a powerful and easy to learn environment with a wide variety of applications. \esc has been developed as a packaged module for \pyt specifically to solve complex partial differential equations. As a result, all the conventions and programming syntax associated with \pyt are coherrent with \esc. If you are unfamiliar with \pyt, there are a large number of simple to advanced guides and tutorials availabe online. These texts should provide an introduction that is comprehensive enough for the use of \esc. A handful of \pyt tutorials have been listed below. |
The \pyt scripting language is a powerful and easy to learn environment with a wide variety of applications. \esc has been developed as a packaged module for \pyt specifically to solve complex partial differential equations. As a result, all the conventions and programming syntax associated with \pyt are coherrent with \esc. If you are unfamiliar with \pyt, there are a large number of simple to advanced guides and tutorials available online. These texts should provide an introduction that is comprehensive enough to use \esc. A handful of \pyt tutorials are listed below. |
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\begin{itemize} |
\begin{itemize} |
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\item This is a very crisp introduction \url{http://hetland.org/writing/instant-python.html}. It covers everthing you need to get started with \esc. |
\item \url{http://hetland.org/writing/instant-python.html} is a very crisp introduction. It covers everything you need to get started with \esc. |
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\item A nice and easy to follow introduction: \url{http://www.sthurlow.com/python/} |
\item A nice and easy to follow introduction: \url{http://www.sthurlow.com/python/} |
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\item Another crisp tutorial \url{http://www.zetcode.com/tutorials/pythontutorial/}. |
\item Another crisp tutorial: \url{http://www.zetcode.com/tutorials/pythontutorial/}. |
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\item A very comprehensive tutorial from the \pyt authors: \url{http://www.python.org/doc/2.5.2/tut/tut.html}. It covers much more than what you will ever need for \esc. |
\item A very comprehensive tutorial from the \pyt authors: \url{http://www.python.org/doc/2.5.2/tut/tut.html}. It covers much more than what you will ever need for \esc. |
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\item Another comprehensive tutorial: \url{http://www.tutorialspoint.com/python/index.htm} |
\item Another comprehensive tutorial: \url{http://www.tutorialspoint.com/python/index.htm} |
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\end{itemize} |
\end{itemize} |
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\subsection{The \modesys Modules} |
\subsection{The \modesys Modules} |
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\esc is part of the \esys package. |
\esc is part of the \esys package. |
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Besides the particle simualation code |
Apart from the particle simulation library |
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\verb|ESyS-Particle|\footnote{see \url{https://launchpad.net/esys-particle}} which is not covered |
\verb|ESyS-Particle|\footnote{see \url{https://launchpad.net/esys-particle}} which is not covered |
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in this tutorial \esys includes the following modules |
in this tutorial \esys also includes the following modules |
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\begin{enumerate} |
\begin{enumerate} |
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\item \modescript is the PDE solving module. |
\item \modescript is the PDE solving module. |
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\item \modfinley is the discretisation tool and finite element package. |
\item \modfinley is the discretisation tool and finite element package. |
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\item \modpycad is a special development for creating irregular shaped domains. |
\item \modpycad is a package for creating irregular shaped domains. |
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\end{enumerate} |
\end{enumerate} |
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Further explanations on each of these is available in the \esc user guide or in the API documentation\footnote{Available from \url{https://launchpad.net/escript-finley/+download}}. |
Further explanations of each of these are available in the \esc user guide or in the API documentation\footnote{Available from \url{https://launchpad.net/escript-finley/+download}}. |
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\esc is also dependent on a few other open-source packages which are not maintained by the \esc development team. These are \modnumpy an array and matrix handling package, \modmpl \footnote{\modnumpy and \modmpl are part of the SciPy package, see \url{http://www.scipy.org/}} a simple plotting tool and \verb gmsh \footnote{See \url{http://www.geuz.org/gmsh/}} which is required by \modpycad. These packages (\textbf{except} for \verb gmsh ) are included with the support bundles. |
\esc is also dependent on a few other open-source packages which are not maintained by the \esc development team. These are \modnumpy (an array and matrix handling package), \modmpl \footnote{\modnumpy and \modmpl are part of the SciPy package, see \url{http://www.scipy.org/}} (a simple plotting tool) and \verb gmsh \footnote{See \url{http://www.geuz.org/gmsh/}} (which is required by \modpycad). These packages (\textbf{except} for \verb gmsh ) are included with the support bundles. |
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