LIGN="RIGHT">

<!-- MATH
 \begin{equation}
f_3 (v_1, v_2) = (v_1 + v_2) \log (v_1 - v_2),
\end{equation}
 -->
<TABLE WIDTH="100%" ALIGN="CENTER">
<TR VALIGN="MIDDLE"><TD ALIGN="CENTER" NOWRAP><A NAME="1.2.4"></A><IMG
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 ALT="\begin{displaymath}
f_3 (v_1, v_2) = (v_1 + v_2) \log (v_1 - v_2),
\end{displaymath}"></TD>
<TD WIDTH=10 ALIGN="RIGHT">
(2.8)</TD></TR>
</TABLE>
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where, for example,  <IMG
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