\documentclass{article}
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Testing the tabbing environment

\begin{table}
\begin{center}
\begin{tabbing}
------\= ------------\=\kill
\> this \> line will work \\
\> this \> line will kill conversion \\ \\
\> this \> line follows \\
\end{tabbing}
\end{center}
\end{table}


\begin{table}
\begin{center}
\begin{tabbing}
\hspace*{1cm}\= $M_{38}=10^{38}-1=$ \= $3\times 3 \times 11 \times 909090909090909091$\\
                \>                     \> $\times 1111111111111111111,$\\
                \> $M_{39}= 10^{39}-1= 3 \times 3 \times 3 \times 3 \times 37 \times 53 \times 79$\\ 
                \>                     \> $\times 265371653 \times 900900900900990990990991.$
\end{tabbing}
\end{center}
\end{table}


\begin{table}
\begin{center}
\begin{tabbing}
Cheddar cheese \= Recommended \= \$2.00 \kill
Green Ham \> Recommended \> \$2.00      \\
Eggs \> 1 a week \> \$1.50              \\
Cheddar cheese \> Hmmm \> \$0.80        \\
Yak cheese \> Avoid \> \$0.05
\end{tabbing}
\caption{Simplest test case for tabbing environment, should be
three aligned columns}
\end{center}
\end{table}

\begin{table}
\begin{center}
\begin{tabbing}
Entry in position 1,1 \= Entry 1,2 \= Entry 1,3\\
Entry in position 2,1 \> Entry 2,2 \> Entry 2,3\\
Entry 3,1 \= Entry 3,2 \> Entry 3,3            \\
Entry 4,1 \> Entry 4,2 \> Entry 4,3
\end{tabbing}
\caption{Another easy test case for tabbing environment, should be
three aligned columns}
\end{center}
\end{table}

\begin{table}
\begin{center}
\begin{tabbing}
Income \=Expenditure \=    \kill
Income \>Expenditure \>Result \\
20s 0d \>19s 11d \>Happiness   \\
20s 0d \>20s 1d  \>Misery    \\
20s 0d \>40s 0d  \>Bancruptcy    \\
20s 0d \>80s 0d  \>Government    \\
\end{tabbing}
\caption{Another easy test case for tabbing environment, should be
three aligned columns}
\end{center}
\end{table}

\begin{table}
\begin{center}
\begin{tabbing}
Armadillo: \=							\kill
Gnat:      \> swatted by: \= men \+\+   \\
                             cows       \\
                      and \' gnus   \-  \\
              not very filling    \-    \\
Armadillo: \> not edible                \\
\pushtabs
(note also the: \= aardvark             \\
                \> albatross \` eton)   \\
\poptabs
Gnu:            \> eaten by  \>    gnats
\end{tabbing}
\caption{Simplest test case for tabbing environment, should be
three aligned columns}
\end{center}
\end{table}

\begin{table}
\centering
\begin{tabbing}
\t{oo} \= \verb|\t{oo}|~~~ \=
\t{oo} \= \verb|\t{oo}|~~~ \=
\t{oo} \= \verb|\t{oo}|~~~ \=
\t{oo} \= \verb|\t{oo}|~~~ \=
\t{oo} \= \verb|\t{oo}|~~~ \=
\t{oo} \=                       \kill

\a`{o} \> \verb|\`{o}|  \> \~{o}  \> \verb|\~{o}|  \> \v{o}  \> \verb|\v{o}| \>
\c{o}  \> \verb|\c{o}|  \> \a'{o} \> \verb|\'{o}|  \\
\a={o} \> \verb|\={o}|  \> \H{o}  \> \verb|\H{o}|  \> \d{o}  \> \verb|\d{o}| \>
\^{o}  \> \verb|\^{o}|  \> \.{o}  \> \verb|\.{o}|  \\
\t{oo} \> \verb|\t{oo}| \> \b{o}  \> \verb|\b{o}|  \\  \"{o} \> \verb|\"{o}| \>
\u{o}  \> \verb|\u{o}|  \\
\end{tabbing}
\caption{A bunch of different types of `o'.  This table may fail with older versions of Word.  Other RTF readers may get the unicode right, but fail with the table formatting.}
\end{table}
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