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% Quiz slides day 1 quiz 1

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% Author: FOSSEE <info at fossee  dot in>

% Copyright (c) 2005-2009, FOSSEE Team

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% Macros

\newcounter{qno}

\setcounter{qno}{0}

\newcommand{\incqno}{\addtocounter{qno}{1}{Question \theqno}}

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% Title page

\title[Basic Python]{Python for science and engineering: Day 1, Quiz 1}

\author[FOSSEE Team] {FOSSEE}

\institute[IIT Bombay] {Department of Aerospace Engineering\\IIT Bombay}

\date[] {\today \\Day 1, Quiz 1}

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\begin{document}

\begin{frame}

  \titlepage

\end{frame}

\begin{frame}

  \frametitle{Write your details...}

On the top right hand corner please write down the following:

  \begin{itemize}

    \item Name:

    \item University/College/Company:

    \item Student/Teacher/Professional:

  \end{itemize}

\end{frame}

%% \begin{frame}[fragile]

%% \frametitle{\incqno }

%% Draw (roughly) the plot obtained by the following:

%% \begin{lstlisting}

%% In []: x = linspace(0, 2*pi, 3)

%% In []: plot(x, sin(x))

%% \end{lstlisting}

%% \end{frame}

\begin{frame}[fragile]

\frametitle{\incqno }

Describe the plot produced by the following:

\begin{lstlisting}

In []: x = linspace(0, 2*pi, 50)

In []: plot(x, cos(x), 'go')

\end{lstlisting}

Note: Do not draw it, just describe the plot

\end{frame}

\begin{frame}

\frametitle{\incqno }

How will you plot the previous graph with line width set to 3?  How will

you set the $x$ and $y$ labels of the plot?

\end{frame}

\begin{frame}

\frametitle{\incqno }

How will you set the x and y axis limits so that the region of interest

is in the rectangle $(0, -1.5)$ (left bottom coordinate) and $(2\pi,

1.5)$ (right top coordinate)?

\end{frame}

\begin{frame}

\frametitle{\incqno }

What ipython magic command do you use to obtain the lines of code you have already typed in the interpreter? What command do you use to save them?

\end{frame}

%% \begin{frame}[fragile]

%% \frametitle{\incqno }

%% The following code snippet has an error/bug:

%% \begin{lstlisting}

%% In []: y = linspace(0, 2*pi, 50)

%% In []: plot(y, sin(y))

%% In []: clf()

%% In []: plot(y, cos(y))

%% In []: legend(['sin(y)', 'cos(y)']) 

%% \end{lstlisting}

%% What is the error? How do you fix it?  

%% \end{frame}

\begin{frame}[fragile]

\frametitle{\incqno }

  \begin{lstlisting}

  In []: a = [1, 2, 5, 9]

  In []: a[0:-1]

  \end{lstlisting}

  What is the output?

\end{frame}

\begin{frame}

\frametitle{\incqno }

  How do you combine two lists \emph{a} and \emph{b} to produce one list?

\end{frame}

\begin{frame}[fragile]

\frametitle{\incqno }

  \begin{lstlisting}

  In []: a = [1, 2, 5, 9]

  \end{lstlisting}

  How do you add the value 10 to the end of this list?

\end{frame}

\begin{frame}

\frametitle{\incqno }

Write the code to read a file \texttt{data.txt} and print each line of it?

\end{frame}

%% \begin{frame}[fragile]

%% \frametitle{\incqno }

%% What would be the result of the following code snippet:

%% \begin{lstlisting}

%% In []: x = linspace(0, 10, 50)

%% In []: y = linspace(50, 100, 100)

%% In []: plot(x, y)

%% \end{lstlisting}

%% \end{frame}

\begin{frame}[fragile]

\frametitle{\incqno }

The following code snippet has an error/bug:

\begin{lstlisting}

In []: l = [0.1, 0.2, 0.3, 0.4]

In []: t = [0.69, 0.90, 1.19, 1.30]

In []: tsq = []

In []: for time in t:

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

 ....:     plot(l, tsq)

\end{lstlisting}

What is the error? How do you fix it?

\end{frame}

\begin{frame}

\frametitle{\incqno }

  A sample line from a Comma Separated Values (CSV) file:\\

  \vspace*{0.2in}

  \emph{Rossum, Guido, 42, 56, 34, 54}\\

  \vspace*{0.2in}

  What code would you use to separate the line into fields?

\end{frame}

\begin{frame}[fragile]

\frametitle{\incqno }

  \begin{lstlisting}

  In []: a = [1, 2, 5, 9]

  \end{lstlisting}

  How do you find the length of this list?

\end{frame}

\begin{frame}[fragile]

\frametitle{\incqno }

  \begin{lstlisting}

  In [1]: d = {

          'a': 1,

          'b': 2

          }

  In [2]: print d['c']

  \end{lstlisting}

  What is the output?

\end{frame}

\begin{frame}[fragile]

\frametitle{\incqno }

\begin{lstlisting}

In []: sc = {'A': 10, 'B': 20, 

             'C': 70}

\end{lstlisting}

Given the above dictionary, what command will you give to plot a

pie-chart?

\end{frame}

\begin{frame}[fragile]

\frametitle{\incqno }

\begin{lstlisting}

In []: marks = [10, 20, 30, 50, 55, 

                75, 83] 

\end{lstlisting}

\end{frame}

\end{document}