\batchmode
\documentclass{article}
\makeatletter
\usepackage{epsfig}
\usepackage{psfig}
\usepackage{subfigure}
\usepackage{amsmath}
\usepackage{amssymb}


\makeatother
\newenvironment{tex2html_wrap}{}{}
\newwrite\lthtmlwrite
\def\lthtmltypeout#1{{\let\protect\string\immediate\write\lthtmlwrite{#1}}}%
\newbox\sizebox
\begin{document}
\pagestyle{empty}
{\newpage
\clearpage
\samepage \setbox\sizebox=\hbox{$t_1$}\lthtmltypeout{latex2htmlSize :tex2html_wrap_inline36: \the\ht\sizebox::\the\dp\sizebox.}\box\sizebox
}

{\newpage
\clearpage
\samepage \setbox\sizebox=\hbox{$t_2$}\lthtmltypeout{latex2htmlSize :tex2html_wrap_inline38: \the\ht\sizebox::\the\dp\sizebox.}\box\sizebox
}

{\newpage
\clearpage
\samepage \setbox\sizebox=\hbox{$p_a$}\lthtmltypeout{latex2htmlSize :tex2html_wrap_inline42: \the\ht\sizebox::\the\dp\sizebox.}\box\sizebox
}

{\newpage
\clearpage
\samepage \setbox\sizebox=\hbox{$p_b$}\lthtmltypeout{latex2htmlSize :tex2html_wrap_inline44: \the\ht\sizebox::\the\dp\sizebox.}\box\sizebox
}

{\newpage
\clearpage
\samepage \begin{equation}p_a = \frac{t_1 + t_2}{\|t_1 + t_2\|},   p_b = \frac{t_1 - t_2}{\|t_1 - t_2\|}
    \end{equation}
}

{\newpage
\clearpage
\samepage \setbox\sizebox=\hbox{$p_i (i=a,b)$}\lthtmltypeout{latex2htmlSize :tex2html_wrap_inline46: \the\ht\sizebox::\the\dp\sizebox.}\box\sizebox
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{\newpage
\clearpage
\samepage \setbox\sizebox=\hbox{$G(p_i) = |p_i \cdot t_1|$}\lthtmltypeout{latex2htmlSize :tex2html_wrap_inline48: \the\ht\sizebox::\the\dp\sizebox.}\box\sizebox
}

{\newpage
\clearpage
\samepage \setbox\sizebox=\hbox{$t_3$}\lthtmltypeout{latex2htmlSize :tex2html_wrap_inline54: \the\ht\sizebox::\the\dp\sizebox.}\box\sizebox
}

{\newpage
\clearpage
\samepage \setbox\sizebox=\hbox{$p_c$}\lthtmltypeout{latex2htmlSize :tex2html_wrap_inline62: \the\ht\sizebox::\the\dp\sizebox.}\box\sizebox
}

{\newpage
\clearpage
\samepage \setbox\sizebox=\hbox{$p_d$}\lthtmltypeout{latex2htmlSize :tex2html_wrap_inline64: \the\ht\sizebox::\the\dp\sizebox.}\box\sizebox
}

{\newpage
\clearpage
\samepage \begin{equation}\begin{array}{cc}
        p_a = center(t_1,t_2,t_3) & p_b = center(-t_1,t_2,t_3) \\ 
        p_c = center(t_1,-t_2,t_3) & p_d = center(t_1,t_2,-t_3)
      \end{array}
    \end{equation}
}

{\newpage
\clearpage
\samepage \begin{equation}center(x,y,z) = \frac{(x-y)\times(x-z)}{\|(x-y)\times(x-z)\|}
    \end{equation}
}

{\newpage
\clearpage
\samepage \setbox\sizebox=\hbox{$p_i(i=a,b,c,d)$}\lthtmltypeout{latex2htmlSize :tex2html_wrap_inline66: \the\ht\sizebox::\the\dp\sizebox.}\box\sizebox
}

\stepcounter{section}

\end{document}