% $BI=Bj(B: $B<}B+>r7o(B
%
% $BMzNr(B: 2004-07-13 $B?y;39L0lO/(B


\section{$B?tCM7W;;$K$*$1$k8m:9(B}

$B?tCM8m:9$r@8$8$k$3$H$N$J$$7W;;$r(B{\bf $BM}O@7W;;(B}$B$H8F$V$3$H$K$7$h$&(B. 
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6 $B7e(B($BC1@:EY(B), $B$b$7$/$O(B 10 $B?J(B 15 $B7e(B($BG\@:EY(B)$BDxEY$NM-8z7e?tCM$rMQ$$$F7W;;$9(B
$B$k$N$G(B, $B8m:9$OHr$1$,$?$$(B. $B8m:9$,>.$5$$$&$A$O<BMQ>e:$Fq$,@8$8$k$3$H$OL5$$(B
$B$,(B, $BBg$-$/$J$k$H?tCM7W;;$N7k2L$,?.Mj$G$-$J$$$b$N$H$J$k(B. 

$B$"$k?t$N??CM$r(B $a$, $B6a;w2r$r(B $x$ $B$H$9$k$H$-(B, 
%
\begin{eqnarray}
 e = x - a
\end{eqnarray}
%
$B$r(B{\bf $B8m:9(B}(error)$B$H$$$&(B. $B8m:9$N@dBPCM(B
%
\begin{eqnarray}
 |e| = |x - a|
\end{eqnarray}
%
$B$r(B{\bf $B@dBP8m:9(B}(absolute error)$B$H$$$&(B. 

$B8m:9(B $e$