\documentstyle{article}

\title{ A rapid reveal of periodicities of the civil calendars dates\\
                 and its applications}
                     \author{Xiao Naiyuan\\
  Astronomy Department, Nanjing University, 210093, Nanjing China}
\date{}

\begin{document}
\maketitle

  In this paper a method to reveal rapidly the periodicity on reckoning
of the civil calendars dates is  given. A calendar date is separated
into year figures, month figure and day figure, by which some
characteristic numbers are to be checked out from a fore-compiled
table. A simple calculation upon the numbers will determine the
position of the date in a certain cycle on reckoning of dates.
The cycle number (GAN-ZIII) in the Chinese traditional 60-day cycle,
week day of julian date can be easily and rapidly extracted out by this
method.
  The principle to compile tables is also given in detail in the
paper.

\end{document}
