LATEX basic command

Float

• 3 float Table, Figure, Picture
• Caption can be given only to figure

tabular

  is just an array. Not float

\begin{table}

\begin{center}

\begin{tabular} { |r | r | r | c | } \hline

\multicolumn{4}{c}{this is header of table} \\ \hline

1 & 2 & 3 & 4 \\ \hline

\multicolumn{4}{c}{this is text} \\ \hline

\bf 4 & \it 5 & 6 & val \\ \hline \hline

\end{tabular}

\caption{mycaption}

\label{lbl:mylabel1}

\end{center}

\end{table}

Math environment

• running text  $  write here $ 
• centered & new line \[  ]\ 

\[

\left(

\begin{array}{cc}

a & b

\end{array}

\right)

\]

\[  2^{2^{\cdot{^2}}}  \]

Bibtex

.....
at end of document write

\bibliography{mybib.bib}

to cite
\cite{label1}

\cite{lab1}

\bibliography{1}

\bibliographystyle{plain} % alpha / unsrt / siam / ieeetr

\end{document}