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$$\Delta w_{ji} = \eta\delta x_{c,j} = \eta \Brc{t_{c,j} - y_{c,j}}x_{c,j}.$$ (1)

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$$w_{ji}(n+1) = w_{ji}(n) + \eta\Delta w_{ji}(n) = w_{ji}(n) + \eta\Brc{t_{c,j} - y_{c,j}}x_{c,j}.$$ (2)

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$$\mb{w}(n+1) = \mb{w}(n) + \eta\Brc{\mb{t}_c - \mb{y}_c}\,\mb{x}_c.$$ (3)

$B$3$3$G!"(B$\mb{w}(n)$ $B$O(B n $B2sL\$N3X=,=*N;;~E@$G$N7k9g6/EY$rF~NOAX$N(B $B%K%e!<%m%s$@$1JB$Y$F(B $\Brc{w_1,w_2,\ldots,w_{N}}$ $B$H$7$?$b$N$G$"$k!#(B $\mb{t}_c$ $B$O%Q%?!<%s(B c $B$KBP1~$9$k65;U?.9f$rI=$7!"(B $\mb{y}_c$ $B$O%Q%?!<%s(B c $B$KBP$9$k%Q!<%;%W%H%m%s$N=PNO$rI=$9!#(B $\mb{x}_c$ $B$OF~NO?.9f$G$"$k!#(B

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$$\Brc{\mb{w},\mb{x}} = w_1x_1 + w_2x_2 = \vert\mb{w}\vert\,\vert\mb{x}\vert \cos\theta$$ (4)

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Figure 3 $B$O(B 1 $B$H=PNO$9$Y$-(B(y=1 $B$9$J$o$AK!@~%Y%/%H%k$H$NFb@Q$,@5$G$"$k$Y$-(B)$B%G!<%?$r!"8m$C$F(B 0 $B$H=PNO$7$F$7$^$C$?$H$$$&;vBV$G$"$k!#(B $B$3$N$H$-!"<0(B(3) $BFb$N(B $\Brc{\mb{t}-\mb{y}}$ $B$O(B 1 - 0 = 1 $B$K$J$k$N$G(B $B7k9g2Y=E$N99?7<0!"$9$J$o$AK!@~%Y%/%H%k$N99?7<0$O(B

$$\mb{w}(n) + \eta\Brc{\mb{t}_c - \mb{y}_c}\,\mb{x}_c = \mb{w}(n) + \eta\mb{x}_c.$$ (5)

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