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\setlength{\textheight}{9in}
\setlength{\textwidth}{6.7in}
\setlength{\oddsidemargin}{0in}
\setlength{\evensidemargin}{-0.2in}

\definecolor{HiddenAnswer}{rgb}{1,1,1}
\definecolor{HighlitedAnswer}{rgb}{1,0,0}
\definecolor{EndOfAnswer}{rgb}{0,0,0}

%







%




\def\AnswerSheet{1}

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\newcommand {\vstrut}[2]{\rule[#1]{0in}{#2}}

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{\end{list}
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\newcommand {\cf}{\footnotesize\tt}

\newcommand {\IP}{$\bullet$}

\newcommand {\RA}{{\Large \bf $\Rightarrow$}}

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  \obeylines \footnotesize\tt}

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\def\illustration#1#2{
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\newcommand {\proc}[2]{%
\begin{tabular}{l}
params: #1 \\ 
body: #2 \\ 
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\newcommand {\psetheader}[2]{%
\markboth{6.001, #1---#2}{6.001, #1---#2}
\begin{center}
MASSACHVSETTS INSTITVTE OF TECHNOLOGY \\ 
Department of Electrical Engineering and Computer Science \\ 
6.001---Structure and Interpretation of Computer Programs \\ 
#1 \\ 
\medskip
{\bf #2}
\end{center}
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\newcommand {\problem}[1]{{\bf #1}}

\newcommand {\key}[1]{\fbox{{\sc #1}}}

\newcommand {\ctrl}{\key{ctrl}--}

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\newcommand {\run}{\key{run} \ }

\newcommand {\runkey}[1]{\run \key{#1}}

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\def\emptybox#1#2{\fbox{\vbox to #2{\hbox to #1 {\null}}}}

\def\pscenter#1{\hbox to\hsize{\hss\psadobenomag{#1}\hss}}

\def\itemx{\vspace{-0.1in}\item}

\def\ANSWER#1{{\color{HiddenAnswer} #1 \color{EndOfAnswer}}}

\makeatother
\newenvironment{tex2html_wrap}{}{}
\newwrite\lthtmlwrite
\def\lthtmltypeout#1{{\let\protect\string\immediate\write\lthtmlwrite{#1}}}%
\newbox\sizebox
\begin{document}
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\setcounter{secnumdepth}{0}
{\newpage
\clearpage
\samepage \begin{tabular}{lllll}
{\bf Section Staff:} &
RI: &  Mike Leventon & {\tt leventon@ai.mit.edu} & \\ 
& TA: & Sandia Ren & {\tt sren@mit.edu} & \\ 
& TA: & Hooman Vassef & {\tt hvassef@mit.edu} & (Half of section 12)
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{

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\obeylines \footnotesize\tt 
$\Rightarrow$ (lambda (x) (* x x))
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\begin{minipage}[t]{\linewidth}
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\begin{minipage}[t]{\linewidth}
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$\Rightarrow$ (define double (lambda (x) (* 2 x)))
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\begin{minipage}[t]{\linewidth}
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\begin{minipage}[t]{\linewidth}
\begin{list}{$\bullet$}{%
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\obeylines \footnotesize\tt 
$\Rightarrow$ (double double)
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\begin{minipage}[t]{\linewidth}
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\obeylines \footnotesize\tt 
$\Rightarrow$ (define cube (lambda (x) (*x x x)))
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\begin{minipage}[t]{\linewidth}
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\obeyspaces
\obeylines \footnotesize\tt 
$\Rightarrow$ (cube 3)
{\color{HiddenAnswer} \tt ;Error: "Unbound variable: *x" \color{EndOfAnswer}}

\end{list}
\end{minipage} 


\begin{minipage}[t]{\linewidth}
\begin{list}{$\bullet$}{%
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\obeylines \footnotesize\tt 
$\Rightarrow$ (define + 3)
{\color{HiddenAnswer} \tt ;Value: "+ --> 3" \color{EndOfAnswer}}

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\begin{minipage}[t]{\linewidth}
\begin{list}{$\bullet$}{%
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\obeylines \footnotesize\tt 
$\Rightarrow$ (define - 6)
{\color{HiddenAnswer} \tt ;Value: "- --> 6" \color{EndOfAnswer}}

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\end{minipage} 


\begin{minipage}[t]{\linewidth}
\begin{list}{$\bullet$}{%
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\obeylines \footnotesize\tt 
$\Rightarrow$ (* + -)
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{\newpage
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{\newpage
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{\newpage
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{\newpage
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{\newpage
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{\newpage
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{\newpage
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\samepage \begin{tabular}{p{2.5in}|p{4in}}
{

\begin{minipage}[t]{\linewidth}
\begin{list}{$\bullet$}{%
\setlength{\topsep}{0in}
\setlength{\partopsep}{0in}
\setlength{\itemsep}{0in}
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\setlength{\leftmargin}{1.5em}
\setlength{\rightmargin}{0in}
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}\item[]
\obeyspaces
\obeylines \footnotesize\tt 
$\Rightarrow$ (+ 4)
{\color{HiddenAnswer} \tt ;Value: 4 \color{EndOfAnswer}}

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\end{minipage} 


\begin{minipage}[t]{\linewidth}
\begin{list}{$\bullet$}{%
\setlength{\topsep}{0in}
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\setlength{\leftmargin}{1.5em}
\setlength{\rightmargin}{0in}
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}\item[]
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\obeylines \footnotesize\tt 
$\Rightarrow$ (- 3)
{\color{HiddenAnswer} \tt ;Value: -3 \color{EndOfAnswer}}

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\end{minipage} 


\begin{minipage}[t]{\linewidth}
\begin{list}{$\bullet$}{%
\setlength{\topsep}{0in}
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\obeylines \footnotesize\tt 
$\Rightarrow$ (/ 5)
{\color{HiddenAnswer} \tt ;Value: 0.2 \color{EndOfAnswer}}

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\end{minipage} 


\begin{minipage}[t]{\linewidth}
\begin{list}{$\bullet$}{%
\setlength{\topsep}{0in}
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$\Rightarrow$ (/ 60 5 2 3)
{\color{HiddenAnswer} \tt ;Value: 2 \color{EndOfAnswer}}

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\end{minipage} 
} & {

\begin{minipage}[t]{\linewidth}
\begin{list}{$\bullet$}{%
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\obeylines \footnotesize\tt 
$\Rightarrow$ (+)
{\color{HiddenAnswer} \tt ;Value: 0 \color{EndOfAnswer}}

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\end{minipage} 


\begin{minipage}[t]{\linewidth}
\begin{list}{$\bullet$}{%
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\obeylines \footnotesize\tt 
$\Rightarrow$ (*)
{\color{HiddenAnswer} \tt ;Value: 1 \color{EndOfAnswer}}

\end{list}
\end{minipage} 


\begin{minipage}[t]{\linewidth}
\begin{list}{$\bullet$}{%
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\obeylines \footnotesize\tt 
$\Rightarrow$ (-)
{\color{HiddenAnswer} \tt ;Error: The procedure \#[compiled-procedure] requires 
at least one argment \color{EndOfAnswer}}

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}
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\stepcounter{section}

\end{document}
