Added quickrefs for dictionaries, getting started with arrays, for, matrices, other plots, savefig, using python modules.
\textbf{loops}
To iterate over a sequence: \lstinline|for i in sequence:|\\
\texttt{i} is the looping variable.
To iterate while a condition is true: \lstinline|while condition:|
Blocks in python are indented. To end block return to the previous
indentation.
To break out of the innermost loop: \lstinline|break|
To skip to end of current iteration: \lstinline|continue|
\lstinline|pass| is just a syntactic filler.