author | Puneeth Chaganti <punchagan@gmail.com> |
Thu, 09 Dec 2010 18:39:26 +0530 | |
branch | scipyin2010 |
changeset 441 | 9d9e4026238f |
parent 385 | c70118cdde66 |
permissions | -rw-r--r-- |
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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% Tutorial slides on Python. |
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% |
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% Author: FOSSEE <info at fossee dot in> |
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% Copyright (c) 2005-2009, FOSSEE Team |
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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\documentclass[14pt,compress]{beamer} |
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\mode<presentation> |
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{ |
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\useoutertheme{split} |
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\setbeamercovered{transparent} |
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} |
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\definecolor{darkgreen}{rgb}{0,0.5,0} |
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|
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\usepackage{listings} |
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\lstset{language=Python, |
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basicstyle=\ttfamily\bfseries, |
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commentstyle=\color{red}\itshape, |
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stringstyle=\color{darkgreen}, |
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showstringspaces=false, |
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keywordstyle=\color{blue}\bfseries} |
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\newcommand{\kwrd}[1]{ \texttt{\textbf{\color{blue}{#1}}} } |
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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% Macros |
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\newcounter{qno} |
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\setcounter{qno}{0} |
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\newcommand{\incqno}{\addtocounter{qno}{1}{Question \theqno}} |
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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% Title page |
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Commits from NIT DGP and IITK
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\title[Basic Python]{Python for science and engineering: Day 2, Quiz 1} |
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\author[FOSSEE Team] {FOSSEE} |
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\institute[IIT Bombay] {Department of Aerospace Engineering\\IIT Bombay} |
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\date[] {\today \\ |
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Day 1, quiz 2} |
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
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\begin{document} |
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\begin{frame} |
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\titlepage |
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\end{frame} |
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\begin{frame} |
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\frametitle{Write your details...} |
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On the top right hand corner please write down the following: |
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\begin{itemize} |
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\item Name: |
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\item University/College/Company: |
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\item Student/Teacher/Professional: |
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\item Field of interest/study: |
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\end{itemize} |
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\end{frame} |
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\begin{frame}[fragile] |
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\frametitle{\incqno } |
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\begin{lstlisting} |
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In []: a = array([[1, 2], |
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[3, 4]]) |
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In []: a[1,0] = 0 |
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\end{lstlisting} |
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What is the resulting array? |
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\end{frame} |
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|
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\begin{frame}[fragile] |
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\frametitle{\incqno } |
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\begin{lstlisting} |
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In []: x = array(([1,2,3,4], |
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[2,3,4,5])) |
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In []: x[-2][-3] = 4 |
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In []: print x |
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\end{lstlisting} |
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What will be printed? |
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\end{frame} |
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|
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\begin{frame}[fragile] |
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\frametitle{\incqno } |
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\begin{lstlisting} |
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In []: x = array([[1,2,3,4], |
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[3,4,2,5]]) |
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\end{lstlisting} |
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What is the \lstinline+shape+ of this array? |
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\end{frame} |
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|
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\begin{frame}[fragile] |
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\frametitle{\incqno } |
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\begin{lstlisting} |
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In []: x = array([[1,2,3,4]]) |
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\end{lstlisting} |
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How to change \lstinline+x+ to \lstinline+array([[1,2,0,4]])+? |
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\end{frame} |
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|
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\begin{frame}[fragile] |
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\frametitle{\incqno } |
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\begin{lstlisting} |
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In []: x = array([[1,2,3,4], |
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[3,4,2,5]]) |
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\end{lstlisting} |
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How do you get the following slice of \lstinline+x+? |
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\begin{lstlisting} |
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array([[2,3], |
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[4,2]]) |
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\end{lstlisting} |
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\end{frame} |
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|
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\begin{frame}[fragile] |
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\frametitle{\incqno } |
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\begin{lstlisting} |
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In []: x = array([[9,18,27], |
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[30,60,90], |
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[14,7,1]]) |
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\end{lstlisting} |
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What is the output of \lstinline+x[::3,::3]+ |
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\end{frame} |
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125 |
|
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126 |
|
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127 |
\begin{frame}[fragile] |
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\frametitle{\incqno } |
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\begin{lstlisting} |
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In []: a = array([[1, 2], |
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131 |
[3, 4]]) |
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\end{lstlisting} |
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How do you get the transpose of this array? |
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\end{frame} |
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135 |
|
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136 |
\begin{frame}[fragile] |
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\frametitle{\incqno } |
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\begin{lstlisting} |
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In []: a = array([[1, 2], |
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140 |
[3, 4]]) |
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In []: b = array([[1, 1], |
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[2, 2]]) |
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In []: a*b |
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\end{lstlisting} |
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145 |
What does this produce? |
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\end{frame} |
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147 |
|
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\begin{frame} |
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\frametitle{\incqno } |
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150 |
What command do you use to find the inverse of a matrix and its |
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151 |
eigenvalues? |
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152 |
\end{frame} |
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153 |
|
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%% \begin{frame} |
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%% \frametitle{\incqno } |
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%% The file \lstinline+datafile.txt+ contains 3 columns of data. What |
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%% command will you use to read the entire data file into an array? |
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%% \end{frame} |
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159 |
|
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160 |
%% \begin{frame} |
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%% \frametitle{\incqno } |
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%% If the contents of the file \lstinline+datafile.txt+ is read into an |
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%% $N\times3$ array called \lstinline+data+, how would you obtain the third |
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%% column of this data? |
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165 |
%% \end{frame} |
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166 |
|
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167 |
\begin{frame} |
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168 |
\frametitle{\incqno } |
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169 |
Given a 4x4 matrix \texttt{A} and a 4-vector \texttt{b}, what command do |
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170 |
you use to solve for the equation \\ |
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\texttt{Ax = b}? |
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172 |
\end{frame} |
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173 |
|
379
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%% \begin{frame} |
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%% \frametitle{\incqno } |
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176 |
%% What command will you use if you wish to integrate a system of ODEs? |
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177 |
%% \end{frame} |
354
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178 |
|
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179 |
\begin{frame} |
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180 |
\frametitle{\incqno } |
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181 |
How do you calculate the roots of the polynomial, $y = 1 + 6x + 8x^2 + |
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182 |
x^3$? |
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183 |
\end{frame} |
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184 |
|
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185 |
\begin{frame} |
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186 |
\frametitle{\incqno } |
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187 |
Two arrays \lstinline+a+ and \lstinline+b+ are numerically almost equal, what command |
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188 |
do you use to check if this is true? |
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189 |
\end{frame} |
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190 |
|
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191 |
%% \begin{frame}[fragile] |
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192 |
%% \frametitle{\incqno } |
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193 |
%% \begin{lstlisting} |
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194 |
%% In []: x = arange(0, 1, 0.25) |
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195 |
%% In []: print x |
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196 |
%% \end{lstlisting} |
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197 |
%% What will be printed? |
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198 |
%% \end{frame} |
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199 |
|
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200 |
|
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201 |
%% \begin{frame}[fragile] |
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202 |
%% \frametitle{\incqno } |
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203 |
%% \begin{lstlisting} |
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204 |
%% from scipy.integrate import quad |
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205 |
%% def f(x): |
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%% res = x*cos(x) |
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207 |
%% quad(f, 0, 1) |
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208 |
%% \end{lstlisting} |
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209 |
%% What changes will you make to the above code to make it work? |
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210 |
%% \end{frame} |
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211 |
|
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212 |
%% \begin{frame} |
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213 |
%% \frametitle{\incqno } |
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214 |
%% What two commands will you use to create and evaluate a spline given |
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215 |
%% some data? |
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216 |
%% \end{frame} |
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217 |
|
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%% \begin{frame}[fragile] |
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219 |
%% \frametitle{\incqno } |
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220 |
%% What would be the result? |
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221 |
%% \begin{lstlisting} |
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222 |
%% In []: x |
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223 |
%% array([[0, 1, 2], |
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%% [3, 4, 5], |
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%% [6, 7, 8]]) |
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226 |
%% In []: x[::-1,:] |
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227 |
%% \end{lstlisting} |
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228 |
%% Hint: |
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229 |
%% \begin{lstlisting} |
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%% In []: x = arange(9) |
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%% In []: x[::-1] |
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%% array([8, 7, 6, 5, 4, 3, 2, 1, 0]) |
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%% \end{lstlisting} |
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%% \end{frame} |
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|
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%% \begin{frame}[fragile] |
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%% \frametitle{\incqno } |
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%% What would be the result? |
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%% \begin{lstlisting} |
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%% In []: y = arange(3) |
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%% In []: x = linspace(0,3,3) |
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%% In []: x-y |
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%% \end{lstlisting} |
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%% \end{frame} |
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|
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%% \begin{frame}[fragile] |
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%% \frametitle{\incqno } |
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%% \begin{lstlisting} |
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%% In []: x |
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%% array([[ 0, 1, 2, 3], |
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%% [ 4, 5, 6, 7], |
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%% [ 8, 9, 10, 11], |
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%% [12, 13, 14, 15]]) |
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%% \end{lstlisting} |
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%% How will you get the following \lstinline+x+? |
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%% \begin{lstlisting} |
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%% array([[ 5, 7], |
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%% [ 9, 11]]) |
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%% \end{lstlisting} |
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%% \end{frame} |
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|
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%% \begin{frame}[fragile] |
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%% \frametitle{\incqno } |
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%% What would be the output? |
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%% \begin{lstlisting} |
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%% In []: y = arange(4) |
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%% In []: x = array(([1,2,3,2],[1,3,6,0])) |
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%% In []: x + y |
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%% \end{lstlisting} |
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%% \end{frame} |
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|
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%% \begin{frame}[fragile] |
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%% \frametitle{\incqno } |
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%% \begin{lstlisting} |
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%% In []: line = plot(x, sin(x)) |
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%% \end{lstlisting} |
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%% Use the \lstinline+set_linewidth+ method to set width of \lstinline+line+ to 2. |
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%% \end{frame} |
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|
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%% \begin{frame}[fragile] |
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%% \frametitle{\incqno } |
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%% What would be the output? |
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%% \begin{lstlisting} |
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%% In []: x = arange(9) |
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%% In []: y = arange(9.) |
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%% In []: x == y |
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%% \end{lstlisting} |
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%% \end{frame} |
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|
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|
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adb85e126341
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\end{document} |
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|
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