,, . ( ), ( ), - , , .. , , .
, , .
, , , .
, Q1 Q0. :
iQ = Q1 / Q0, | (7.1) |
. , () (q), ip iq:
iq = p1 / p0, iq = q1 - q0 (7.2)
iq , ( ) .
ip , . ,
i | = i | q | × i | Q | = Q | i | q | × i | p | (7.3) | |
Q | p |
, . .
, 8 . . 12,180 . . , 5 % 45 % , , :
12,180 = 8 × 1,05 × 1,45 (. .).
, 12,180-8 = 4,180 . . . ( ) :
|
|
DQ(q) = Q0 × (iq - 1) | (7.4) |
: | |
D Q (q)=8×(1,05-1)=0,40 . . | |
: | |
D Q (q)=(Q 1- Q 0)- D Q (q)= Q 1- Q 0× iq = Q 0× iq ×(ip -1) | (7.5) |
DQ(p) = 8 ×1,05 ×(1,45 -1) = 3,78..
, , , ..
DQ = Q1 - Q0 = DQ(q) + DQ(p) | (7.6) |
DQ = 12,18 - 8 = 0,40 + 3,78 = 4,18.
, , :
DQ(q) = Q0 ×iq ×(iq -1) DQ(p) = Q0 ×(ip -1), | (7.7) |
(4,18 . .) :
- :
DQ(p) = 8 ×(1,45 -1) = 3,60.
- :
DQ(q) = 8 ×1,45 ×(1,05 -1) = 0,58.
, -. , (), () ( q).