f 1 | |||||||
12.71 | 4.30 | 3.18 | 2.78 | 2.57 | 2.45 | 2.36 |
, .
() .
, F = ,
; B ; yj, ypj y j - .
F . 21.2 f 1 f 2 = N B.
F < F, .
21.2
f 1 | f 2 | |||||
161.40 | 199.50 | 215.70 | 224.60 | 320.20 | 234.00 | |
18.51 | 19.00 | 19.16 | 19.25 | 19.30 | 19.33 | |
10.13 | 9.55 | 9.28 | 9.12 | 9.01 | 8.94 | |
7.71 | 6.94 | 6.59 | 6.39 | 6.26 | 6.16 | |
6.61 | 5.79 | 5.41 | 5.19 | 5.05 | 4.95 | |
5.99 | 5.14 | 4.76 | 4.53 | 3.39 | 4.28 | |
5.99 | 4.74 | 4.35 | 4.12 | 3.97 | 3.97 |
, , .
, .
1. . 21.3 . . .
2. Mathcad Excel. .
21.3
/ | ||||||||||
x | 2.1 | 2.7 | 3.3 | 3.8 | 4.2 | 4.9 | 5.6 | 6.1 | 6.8 | |
y | 1.2 | 1.6 | 2.1 | 2.4 | 2.5 | 2.8 | 3.4 | 3.8 | 4.0 | |
x | 0.2 | 0.7 | 1.1 | 1.6 | 2.2 | 2.3 | 3.0 | 3.9 | 4.3 | |
y | 6.3 | 10.6 | 14.2 | 15.7 | 15.9 | 15.5 | 12.5 | 5.0 | 0.2 | |
x | 5.0 | 4.2 | 3.5 | 2.8 | 1.9 | 1.2 | 0.3 | 0.8 | 1.3 | |
y | 8.8 | 4.3 | 1.8 | 0.2 | 0.8 | 0.5 | 1.8 | 7.6 | 12.2 | |
x | 0.0 | 0.6 | 1.3 | 1.8 | 2.7 | 3.1 | 3.9 | 4.2 | 5.1 | |
y | 10.2 | 8.2 | 6.0 | 5.1 | 1.5 | 0.8 | 1.6 | 2.8 | 5.5 | |
x | 0.4 | 3.5 | 2.4 | 2.0 | 0.8 | 0.5 | 1.4 | 2.5 | 3.8 | |
y | 1.6 | 1.4 | 1.1 | 0.9 | 0.7 | 0.5 | 0.4 | 0.2 | 0.1 | |
x | 3.1 | 3.7 | 4.3 | 4.8 | 5.2 | 5.9 | 6.6 | 7.1 | 7.8 | |
y | 1.2 | 1.6 | 2.1 | 2.4 | 2.5 | 2.8 | 3.4 | 3.8 | 4.0 | |
x | 0.2 | 0.7 | 1.1 | 1.6 | 2.2 | 2.3 | 3.0 | 3.9 | 4.7 | |
y | 6.3 | 9.6 | 13.2 | 14.7 | 14.9 | 14.5 | 11.5 | 4.0 | 2.1 | |
x | 3.0 | 2.2 | 1.5 | 1.1 | 0.9 | 0.2 | 0.3 | 0.8 | 1.3 | |
y | 8.8 | 4.3 | 1.8 | 0.2 | 0.8 | 0.5 | 1.8 | 7.6 | 12.2 | |
x | 0.0 | 0.6 | 1.3 | 1.8 | 2.7 | 3.1 | 3.9 | 4.2 | 5.1 | |
y | 12.2 | 9.2 | 8.0 | 7.1 | 0.5 | 0.8 | 2.6 | 3.8 | 6.5 | |
x | 5.4 | 3.5 | 2.4 | 2.0 | 0.8 | 0.5 | 1.4 | 2.5 | 3.4 | |
y | 1.6 | 1.1 | 0.8 | 0.7 | 0.7 | 1.4 | 2.1 | 3.2 | 3.9 | |
x | 4.1 | 5.7 | 6.3 | 6.8 | 7.2 | 7.9 | 8.6 | 9.1 | 9.8 | |
y | 1.2 | 1.6 | 2.1 | 2.4 | 2.5 | 2.8 | 3.4 | 3.8 | 4.0 | |
x | 0.2 | 0.7 | 1.1 | 1.6 | 2.2 | 2.3 | 3.0 | 3.9 | 4.3 | |
y | 7.3 | 11.6 | 16.2 | 17.7 | 17.9 | 15.5 | 12.5 | 5.0 | 0.2 | |
x | 3.0 | 2.2 | 1.5 | 0.8 | 0.2 | 0.3 | 1.3 | 1.8 | 2.3 | |
y | 8.8 | 4.3 | 1.8 | 0.2 | 0.8 | 0.5 | 1.8 | 7.6 | 12.2 | |
x | 0.0 | 0.6 | 1.3 | 1.8 | 2.7 | 3.1 | 3.9 | 4.2 | 5.1 | |
y | 20.2 | 28.2 | 26.0 | 25.1 | 21.5 | 20.8 | 11.6 | 12.8 | 15.5 | |
x | 0.4 | 1.5 | 2.4 | 2.8 | 3.1 | 4.5 | 5.4 | 5.5 | 6.8 | |
y | 1.6 | 1.3 | 1.0 | 0.8 | 0.7 | 0.4 | 0.2 | 0.2 | 0.3 |
|
|
: x 1, x 2, , xn , f (x 1, x 2, , xn), , , .
, x1, x2 y. x 1 x 2,
y = f (x 1, x 2)
:
a 1 <= x 1 <= b 1, a 2 <= x 2 <= b 2
g (x 1, x 2) > 0
( ).
x 1 [ a 1, b 1], a 1 b 1 h 1 x 2 [ a 2, b 2], a 2 b 2 h 2. x 1 x 2, g (x 1, x 2) > 0, y = f (x 1, x 2).
x1 x2, , .
:
1. : a 1, b 1, h 1, a 2, b 2, h 2 A, , .
2. yopt = A, x 1 opt = a 1, x 2 opt = a 2.
3. x 1 = a 1
4. x 2 = a 2
5. : , . . g (x 1, x 2) <= 0, . 8, .
6. y = f (x 1, x 2).
7. y < yopt, yopt = y, x 1 opt = x 1, x 2 opt = x 2, .
8. x 2 = x 2 + h 2.
9. x 2 <= b 2, . 5, .
10. x 1 = x 1 + h 1.
11. x 1 <= b 1, . 4, .
12. x 1 opt, x 2 opt yopt.
|
|
, . (N ) y x 1 x 2, [ a 1, b 1] [ a 2, b 2] . x 1 x 2, .
x [ a, b ] Rnd. x = (b a) × Rnd (1) + a.
:
1. : a 1, b 1, a 2, b 2, N A, , .
2. yopt = A, x 1 opt = a 1, x 2 opt = a 2.
3. i = 1.
4. x 1 = (b 1 a 1) × Rnd (1) + a 1, x 2 = (b 2 a2) × Rnd (1) + + a 2.
5. : g (x 1, x 2) <= 0, . 8, .
6. y = f (x 1, x 2).
7. y < yopt, yopt = y, x 1 opt = x 1, x 2 opt = x 2, .
8. i = i + 1.
9. i <= N, . 4, . 10.
10. x 1 opt, x 2 opt yopt.