Considere as funç\~oes:

\begin{enumerate}
   \item $f_1(x)=x \log{x}-x$;
   \item $f_2(x)=x^2 \cos{x}$;
   \item $f_3(x)=x-\sin{x}-1$;
   \item $f_4(x)=x^3-3x^2+x-2$;
   \item $f_5(x)=-2.0+\cos{x}-e^x$;
\end{enumerate}

No arquivo N01.py implemente como Python \texttt{def f\_i(x)}, $i=1,2,3,4,5$.

Para as abcissas: $x=[1/4,1/3,1/2,1,2,3,4]$, crie um trecho de c\'odigo,
gerando uma tabela com colunas $x$, $f_1(x)$, $f_2(x)$, $f_3(x)$, $f_4(x)$, $f_5(x)$:
 
\begin{center}\begin{tabular}{cccccc}
x & f\_1(x) & f\_2(x) & f\_3(x) & f\_4(x) & f\_5(x)\\
0.250000 & -0.596574 & 0.060557 & -0.997404 & -1.921875 & -1.684887\\
0.333333 & -0.699537 & 0.104995 & -0.993861 & -1.962963 & -1.549345\\
0.500000 & -0.846574 & 0.219396 & -0.979426 & -2.125000 & -1.228861\\
...
\end{tabular}\end{center}
