--- a/day1quiz2.tex	Wed Jan 06 13:59:03 2010 +0530
+++ b/day1quiz2.tex	Sun Jan 10 16:43:15 2010 +0530
@@ -61,237 +61,6 @@
   \end{itemize}
 \end{frame}
 
-%% \begin{frame}[fragile]
-%% \frametitle{\incqno }
-%% \begin{lstlisting}
-%%   In []: x = array([[1,2,3,4],
-%%                     [3,4,2,5]])
-%% \end{lstlisting}
-%% What is the \lstinline+shape+ of this array?
-%% \end{frame}
-
-
-\begin{frame}[fragile]
-\frametitle{\incqno }
-\begin{lstlisting}
-  In []: x = array([[1,2,3,4]])
-\end{lstlisting}
-How to change the third element (i.e.\ 3) of \lstinline+x+ to 0?
-\end{frame}
-
-\begin{frame}[fragile]
-\frametitle{\incqno }
-\begin{lstlisting}
-  In []: x = array([[1,2,3,4],
-                    [3,4,2,5]])
-\end{lstlisting}
-How do you get the following slice of \lstinline+x+?
-\begin{lstlisting}
-array([[2,3],
-       [4,2]])
-\end{lstlisting}
-\end{frame}
-
-
-%% \begin{frame}
-%% \frametitle{\incqno }
-%% The file \lstinline+datafile.txt+ contains 3 columns of data.  What
-%% command will you use to read the entire data file into an array?
-%% \end{frame}
-
-%% \begin{frame}
-%% \frametitle{\incqno }
-
-%% If the contents of the file \lstinline+datafile.txt+ is read into an
-%% $N\times3$ array called \lstinline+data+, how would you obtain the third
-%% column of this data?
-
-%% \end{frame}
-
-\begin{frame}[fragile]
-\frametitle{\incqno }
-\begin{lstlisting}
-  In []: x = array(([1,2,3,4],
-                    [2,3,4,5]))
-  In []: x[-2][-3] = 4
-  In []: print x
-\end{lstlisting}
-What will be printed?
-\end{frame}
-
-
-%% \begin{frame}[fragile]
-%% \frametitle{\incqno }
-%% \begin{lstlisting}
-%%   In []: x = arange(0, 1, 0.25)
-%%   In []: print x
-%% \end{lstlisting}
-%% What will be printed?
-%% \end{frame}
+\end{document}
 
 
-%% \begin{frame}[fragile]
-%% \frametitle{\incqno }
-%% \begin{lstlisting}
-%% from scipy.integrate import quad
-%% def f(x):
-%%     res = x*cos(x)
-
-%% quad(f, 0, 1)
-%% \end{lstlisting}
-
-%% What changes will you make to the above code to make it work?
-%% \end{frame}
-
-%% \begin{frame}
-%% \frametitle{\incqno }
-%% What two commands will you use to create and evaluate a spline given
-%% some data?
-%% \end{frame}
-
-\begin{frame}
-\frametitle{\incqno }
-What command will you use if you wish to integrate a system of ODEs?
-\end{frame}
-
-\begin{frame}
-\frametitle{\incqno }
-How do you calculate the roots of the polynomial, $y = 1 + 6x + 8x^2 +
-x^3$?
-\end{frame}
-
-\begin{frame}
-\frametitle{\incqno }
-
-Two arrays \lstinline+a+ and \lstinline+b+ are numerically almost equal, what command
-do you use to check if this is true?
-
-\end{frame}
-
-\begin{frame}[fragile]
-\frametitle{\incqno }
-\begin{lstlisting}
-In []: marks = [10, 20, 30, 50, 55, 
-               75, 83] 
-\end{lstlisting}
-How will you convert the list \texttt{marks} to an \alert{array}?
-\end{frame}
-
-\begin{frame}[fragile]
-\frametitle{\incqno }
-\begin{lstlisting}
-In []: a = array([[1, 2],
-                  [3, 4]])
-In []: a[1,0] = 0
-\end{lstlisting}
-What is the resulting matrix?
-\end{frame}
-
-\begin{frame}[fragile]
-\frametitle{\incqno }
-\begin{lstlisting}
-In []: a = array([[1, 2],
-                  [3, 4]])
-\end{lstlisting}
-How do you get the transpose of this array?
-\end{frame}
-
-\begin{frame}[fragile]
-\frametitle{\incqno }
-\begin{lstlisting}
-In []: a = array([[1, 2],
-                  [3, 4]])
-In []: b = array([[1, 1],
-                  [2, 2]])
-In []: a*b
-\end{lstlisting}
-What does this produce?
-\end{frame}
-
-\begin{frame}
-\frametitle{\incqno }
-What command do you use to find the inverse of a matrix and its
-eigenvalues?
-\end{frame}
-
-\begin{frame}
-\frametitle{\incqno }
-Given a 4x4 matrix \texttt{A} and a 4-vector \texttt{b}, what command do
-you use to solve for the equation \\
-\texttt{Ax = b}?
-\end{frame}
-
-\end{document}
-
-%% \begin{frame}[fragile]
-%% \frametitle{\incqno }
-%% What would be the result?
-%% \begin{lstlisting}
-%%   In []: x
-%%   array([[0, 1, 2],
-%%          [3, 4, 5],
-%%          [6, 7, 8]])
-%%   In []: x[::-1,:]
-%% \end{lstlisting}
-%% Hint:
-%% \begin{lstlisting}
-%%   In []: x = arange(9)
-%%   In []: x[::-1]
-%%   array([8, 7, 6, 5, 4, 3, 2, 1, 0])
-%% \end{lstlisting}
-%% \end{frame}
-
-%% \begin{frame}[fragile]
-%% \frametitle{\incqno }
-%% What would be the result?
-%% \begin{lstlisting}
-%%   In []: y = arange(3)
-%%   In []: x = linspace(0,3,3)
-%%   In []: x-y
-%% \end{lstlisting}
-%% \end{frame}
-
-%% \begin{frame}[fragile]
-%% \frametitle{\incqno }
-%% \begin{lstlisting}
-%%   In []: x
-%%   array([[ 0, 1, 2, 3],
-%%          [ 4, 5, 6, 7],
-%%          [ 8, 9, 10, 11],
-%%          [12, 13, 14, 15]])
-%% \end{lstlisting}
-%% How will you get the following \lstinline+x+?
-%% \begin{lstlisting}
-%%   array([[ 5, 7],
-%%          [ 9, 11]])
-%% \end{lstlisting}
-%% \end{frame}
-
-%% \begin{frame}[fragile]
-%% \frametitle{\incqno }
-%% What would be the output?
-%% \begin{lstlisting}
-%%   In []: y = arange(4)
-%%   In []: x = array(([1,2,3,2],[1,3,6,0]))
-%%   In []: x + y
-%% \end{lstlisting}
-%% \end{frame}
-
-%% \begin{frame}[fragile]
-%% \frametitle{\incqno }
-%% \begin{lstlisting}
-%%   In []: line = plot(x, sin(x))
-%% \end{lstlisting}
-%% Use the \lstinline+set_linewidth+ method to set width of \lstinline+line+ to 2.
-%% \end{frame}
-
-%% \begin{frame}[fragile]
-%% \frametitle{\incqno }
-%% What would be the output?
-%% \begin{lstlisting}
-%%   In []: x = arange(9)
-%%   In []: y = arange(9.)
-%%   In []: x == y
-%% \end{lstlisting}
-%% \end{frame}
-