Sven Schmit added physical model.tex  over 9 years ago

Commit id: 0568d7855037d2645a840bb32ad407c072265ea9

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\section{Physical modelling}  We consides a subset of $\mathbf{R}^2$ as our playing field, or world.  On this world live sheep and dogs.   The dogs are free to move anywhere, but the movement of sheep is pre-specified, using axioms that are based on the idea of boids.  \subsection(The axioms of sheep)  \begin{itemize}  \item to do  \end{itemize}