31 \def\ol{\overline}

    31 \def\ol{\overline}

    32 

    32 

    33 \def\spl{_\pitchfork}

    33 \def\spl{_\pitchfork}

    34 

    34 

    35 %\def\nn#1{{{\it \small [#1]}}}

    35 %\def\nn#1{{{\it \small [#1]}}}

    37 \long\def\noop#1{}

    37 \long\def\noop#1{}

    38 

    38 

    39 % equations

    39 % equations

    40 \newcommand{\eq}[1]{\begin{displaymath}#1\end{displaymath}}

    40 \newcommand{\eq}[1]{\begin{displaymath}#1\end{displaymath}}

    41 \newcommand{\eqar}[1]{\begin{eqnarray*}#1\end{eqnarray*}}

    41 \newcommand{\eqar}[1]{\begin{eqnarray*}#1\end{eqnarray*}}