279 \end{frame}

   279 \end{frame}

   280 

   280 

   281 \begin{frame}[fragile]

   281 \begin{frame}[fragile]

   282 \frametitle{Lets use lists}

   282 \frametitle{Lets use lists}

   283 \begin{lstlisting}

   283 \begin{lstlisting}

   285             0.6, 0.7, 0.8, 0.9]

   285             0.6, 0.7, 0.8, 0.9]

   286 

   286 

   287 In []: t = [0.69, 0.90, 1.19, 

   287 In []: t = [0.69, 0.90, 1.19, 

   288             1.30, 1.47, 1.58, 

   288             1.30, 1.47, 1.58, 

   289             1.77, 1.83, 1.94]

   289             1.77, 1.83, 1.94]

   307 In []: for time in t:

   307 In []: for time in t:

   308  ....:     tsq.append(time*time)

   308  ....:     tsq.append(time*time)

   309  ....:

   309  ....:

   310  ....:

   310  ....:

   311 

   311 

   313 \end{lstlisting}

   312 \end{lstlisting}

   314 This gives \kwrd{tsq} which is the list of squares of \typ{t} values.

   313 This gives \kwrd{tsq} which is the list of squares of \typ{t} values.

   315 \end{frame}

   318 \end{frame}

   316 

   319 

   317 \begin{frame}[fragile]

   320 \begin{frame}[fragile]

   318   \frametitle{How to come out of the \texttt{for} loop?}

   321   \frametitle{How to come out of the \texttt{for} loop?}

   319   Hitting the ``ENTER'' key twice returns the cursor to the previous indentation level

   322   Hitting the ``ENTER'' key twice returns the cursor to the previous indentation level

   321     In []: for time in t:

   324     In []: for time in t:

   322      ....:     tsq.append(time*time)

   325      ....:     tsq.append(time*time)

   323      ....:     

   326      ....:     

   324      ....:     

   327      ....:     

   325 

   328 

   327   \end{lstlisting}

   330   \end{lstlisting}

   328 \end{frame}

   331 \end{frame}

   329 

   332 

   330 \begin{frame}[fragile]

   333 \begin{frame}[fragile]

   331 \begin{figure}

   334 \begin{figure}

   360 

   363 

   361 \begin{frame}[fragile]

   364 \begin{frame}[fragile]

   362 \frametitle{Plotting from \typ{pendulum.txt}}

   365 \frametitle{Plotting from \typ{pendulum.txt}}

   363 Open a new script and type the following:

   366 Open a new script and type the following:

   364 \begin{lstlisting}

   367 \begin{lstlisting}

   366 t = []

   369 t = []

   367 for line in open('pendulum.txt'):

   370 for line in open('pendulum.txt'):

   368     point = line.split()

   371     point = line.split()

   370     t.append(float(point[1]))

   373     t.append(float(point[1]))

   371 tsq = []

   374 tsq = []

   372 for time in t:

   375 for time in t:

   373     tsq.append(time*time)

   376     tsq.append(time*time)

   375 \end{lstlisting}

   378 \end{lstlisting}

   376 \end{frame}

   379 \end{frame}

   377 

   380 

   378 \begin{frame}

   381 \begin{frame}

   379 \frametitle{Save and run}

   382 \frametitle{Save and run}

   446 \end{frame}

   449 \end{frame}

   447 

   450 

   448 \begin{frame}[fragile]

   451 \begin{frame}[fragile]

   449 \frametitle{Let's review the code}

   452 \frametitle{Let's review the code}

   450 \begin{lstlisting}

   453 \begin{lstlisting}

   452 t = []

   455 t = []

   453 for line in open('pendulum.txt'):

   456 for line in open('pendulum.txt'):

   454     point = line.split()

   457     point = line.split()

   456     t.append(float(point[1]))

   459     t.append(float(point[1]))

   457 tsq = []

   460 tsq = []

   458 for time in t:

   461 for time in t:

   459     tsq.append(time*time)

   462     tsq.append(time*time)

   461 \end{lstlisting}

   464 \end{lstlisting}

   462 \end{frame}

   465 \end{frame}

   463 

   466 

   464 \begin{frame}[fragile]

   467 \begin{frame}[fragile]

   465 \begin{figure}

   468 \begin{figure}