#title: 
#author: 
#date: (def=\today)
#let:

n  a   =[ 2,3,4 ];
n  b   =[ 2,3,4 ];
n  c   = #a * #b ;
   ## v   = {{ [#a, #b, [#c, 33]] }}; ainda nao funciou :-(

   v   = {{ [#a, #b, #c] }};  
   ## vector

   f1  = exp(x);
   f2  = #f1;

   w   = perl{ [#a, #b, #c] };  


#question:

\begin{enumerate}
\item $#a \times #b$ ? 

\item qual derivada de $#f1$ ?
\end{enumerate}

#sugestion:
#resolution:
#result:

  #c

  #v  
#Verification:
  #c  type=f ;

  #v  ;

  #f1 type=r_rfunmax;

  #v  type=memberof;

#usepackage
 % \usepackage{...}  latex preambula

#perl