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:
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cij i- j- .
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= (7.1)
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< (7.2)
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3. :
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1, 2, 3 90, 400 110 . 1, 2, 3, 140, 300 160 . , . , i- j- . ( ) (..) . 7.1.
. 7.1.
1 | 2 | 3 | |
1 | |||
2 | |||
3 |
xij, i- j- . , , , , . , .
( ) :
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cij 1 i j:
=
xij ( ), i j. ()
i, () bj, :
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.
Z = c11 x11 + c12 x12 + c13 x13 + c21 x21 + c22 x22 +c23 x23 + c31 x31 + c32 x32 + c33 x33
Z = 2x11 + 5x12 + 2x13 + 4x21 + 1x22 +5x23 + 3x31 + 6x32 + 8x33 (7.4)
, :
, , ..:
, ( )
, : (7.4) , (7.5) - (7.7).
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1) ;
2) 1;
3) .
, 9 , 6. ( ij ).
(-), . , (7.4) - (7.7) (7.1).
( ):
90 + 400 + 110 = 140 + 300 + 160 = 600.
, (, ) . Excel ( ).
. 7.1.
1. 1 (. 7.1.).
2. 2, 12:14, xij.
3. . 4:6 ij i- xij , j- . 7 (. 7.1), .. (7.4), .
4. (7.5) - (7.7) , :
|
|
xi1 + xi2 + xi3 = ai xi1 + xi2 + xi3 ai = 0
x1j + x2j + x3j = bj x1j + x2j + x3j bj = 0
Excel H12:H14 (7.5) , ; 17:17 (7.6) , .
5. (.7.2.).
.7.2.
6. 12:14, 7.
. 7.2.
1 | 2 | 3 | |
1 | |||
2 | |||
3 |
. 7.2., 1280 ..