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= (-)*, , .

= ** .

1) :

2) :

3. . 1, . :

:

, .

.

2 . :

Z (x) = yD0 y;Dx*Dx + ½ D*

Z (y) = xD0 y.Dx*Dy + ½ D*

, .

.

, , .

ZD1 (x) = y1 x;D*

ZD2 (x) = y0 x;D*

ZD1 (y) = x1 y;D*

ZD2 (y) = x0 y;D*

_

ZDZ (x) = ½ [D1 ZD(x) + 2 (x)];

_

ZDZ (y) = ½ [D1 ZD(y) + 2 (y)].

.

. .

. , .

.

, . .

8. .

, .. , . , .

, .

1. = *b:

Δ = Δ *b +1/2 Δ*Δb;

Δb = Δb + ½ Δ*Δb.

2. = * b * :

Δ = ½ Δ*(b0 c1+b10) + 1/3 Δ* Δb*Δ;

Δb= ½ Δb*(1 +10) + 1/3 Δ*Δb*Δ;

Δc = ½ Δ* ( b1+ 1 b0)+ 1/3 Δ*Δb *Δ.

3. = /:

Δ = Δ/ Δb * ln Ib1/ b0I;

Δb = Δb - Δ;

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