The effect of this transformation is that, measured relative to the view rectangle, the distance of primitives with coordinates $(x, y)$ to the point $(x_0, y_0)$ will decrease by a factor of $s$. For $s < 1$ the operation is ``zooming out'' and for $s > 1$, ``zooming in''.
+
+{\bf TODO}
+\begin{itemize}
+ \item Intermediate coordinate systems...
+ \item Write Matrix operations properly
+ \item Link with the results where applying \eqref{view-transformation} directly leads to disaster
+ \item This is because for $v_w << 1$, an error of $1 ulp$ in $x - v_x$ is comparable with $v_w$, ie: Can increase to the order of the size of the display (or more)
+\end{itemize}
+
%TODO List
% Mention that these transformations affect precision more than eg: drawing a line
% Discuss floating point errors that could occur?