3. : , , , .
: : , , (). . , , .
Y = a * b * * d
1. : Y0 = a0 * b0 * 0* d0;
2. :
Y.1 = a1 * b0 * 0* d0;
Y.2 = a1 * b1 * 0* d0;
Y.3 = a1 * b1 * 1* d0;
3. : Y1 = a1 * b1 * 1* d1;
4. :
ΔY = Y.1 Y0;
ΔYb = Y.2 Y.1;
ΔY = Y.3 Y.2;
ΔYd = Y1 Y.3;
5. , :
ΔY = Y1 - Y0 = ΔY + ΔYb + ΔY + ΔYd
. - . . 0, 0, b0, 0 1, 1, b1, 1 . .
--
-- b
-- c
, Y = a * (b - c). ( %) 100. , ( %) 100.
Y = a * b *
1. , :
Δa% = (a1 a0) / 0 * 100%
Δb% = (b1 b0) / b0 * 100%
Δc% = (c1 c0) / c0 * 100%
2. :
ΔYa = Y0 * Δa% / 100;
ΔYb = (Y0 + ΔYa)* Δb% / 100;
ΔY = (Y0 + ΔYa + ΔYb)* Δc% / 100
3. :
ΔY = ΔYa + ΔYb + ΔYc = Y1 Y0.