: , , . S0 =100 .. .
| 1 f (1) | 2 f (2) | 3 f (3) | 4 f (4) | |
:
:
4
S0=80
So____I____S1____II_____S2____III____S3____IV________S4
1 2 3 4
1 2 3 4
f(x1) f(x2) f(x3) f(x4)
F4=max{f(x4)}
F3=max{ f(x3)+F4}
F2=max{ f(x2)+F3}
F1=max{ f(x1)+F2}
:
, , , . , , , , .
:
:
xi , i .
Si , i- ( i-);
F(xi) ;
S0 .
4- :
4- 0, 20, 40, 60, 100 .. .
| S3 | 4 | f (x4) | F4 |
3- :
3- 4- 0, 20, 40, 60, 100 .. . 3- 20 .. 4- , . 40 .. (0;40), (20;20);
60 .. (0;60), (20;40), (40;20), (60;0).
3- , , 4-
3- .
| S2 | 3 | S3 | f (x3) | F4 | f+F | F3 |
2- .
|
|
|
| S1 | 2 | S2 | f (x2) | F3 | f+F | F2 |
1- .
| S1 | 2 | S2 | f (x2) | F3 | f+F | F2 |
:
15 .. :
1) 1 0 .., 2 0 .., 3 60 .., 4 40 ..
2) 1 0 .., 2 100 .., 3 0 .., 4 0 ..
3) 1 20 .., 2 0 .., 3 60 .., 4 20 ..
4) 1 60 .., 2 0 .., 3 20 .., 4 20 ..
5) 1 60 .., 2 0 .., 3 0 .., 4 40 ..
6.4.
S0 = 100 . , f1(x) = 0.9x j1(x) = 0.5x. , f2(x) = 0.8x j2(x) = 0.7x.
|
|
|
| 1 | 2 | ||
| 1 | 1 | 100-1 | |
| 0,91 | 0,8(100-1) | (0,9-0,8)1+80 | |
| 0,51 | 0,7(100-1) | (0,5-0,7)1+70 =70-0,21 | |
| 2 | 2 | 70-0,21- 2 | 70-0,21 |
| 0,92 | 0,8(70-0,21- 2) | 56-0,161+0,12 | |
| 0,11+80+56-0,161+0,12=136-0,61+0,12 |
, 1=0, 2=70, 143 . .
:
1. ?
2. ?
3. ?
4. ?
5. ?
6. 1 ?
7. 2 ?
8. 1 2 ?
