Y = a x b x c.
. 3 , , 4 .
1) a0 x b0 x c0 = Y0
} ∆Y
2) a1 x b0 x c0 = Y1
} ∆Yb
3) a1 x b1 x c0 = Y2
} ∆Y
4) a1 x b1 x c1 = Y1
∆Y = Y1 - Y0
∆Yb = Y2 - Y1
C ∆Yc = Y1 - Y2
∆Y + ∆Yb + ∆Yc = Y1 - Y0 = ∆Y
( 2):
2. ( ), . . 1 ,
=
.
1) Y0 80 x 1210 = 96800 :
} 101640 96800 = +4840
2) Y 84 x 1210 = 101640 :
} 105840 101640 = +4200
3) Y1 84 x 1260 = 105840
: 4840 + 4200 = 105840 96800 = +9040
2.
| , 0 | , 1 | , ∆ | , % | |
| 1. , . ., (Y) | + 9040 | 109,34 | ||
| 2. () () | 80 a0 | 84 1 | + 4 ∆ | |
| 3. 1- (b) | 1210 b0 | 1260 b1 | + 50 ∆b | 104,132 |
4 4840 . . 4200 . . 50 . .
: , . , , .
2). , .
Y = a x b x c.
:
∆Y= ∆a x b0 x c0
b :
∆Yb=a1 x ∆b x c0
:
|
|
|
∆Y= a1 x b1 x ∆c
:
∆a= 1-0
:
∆Y + ∆Yb + ∆Yc = Y1 - Y0 = ∆Y
2.
: Y = a x b.
:
∆Y= ∆a x b0 =4 1210=4840
b :
∆Yb=a1 x ∆b =84 50=4200
: . . .
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[2] .., .., .. : . / . .. .: , 2004. . 21.
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[5] .., .., .. : . / . .. . .: , 2004. . 132.
[6] .. : . / .. . 4- ., . . .: - , 2007. . 26.
[7] .. :: . / .. . 4- ., . . .: - , 2007. . 32.
[8] .. :: . / .. . 4- ., . . .: - , 2007. . 29.
