Методические материалы для изучения алгоритмов реализации методов безусловной оптимизации непрерывных одномерных и многомерных унимодальных функций. Корнилов А.Г. - 14 стр.

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13
d = b - 0,382( 3,47 - 1 ) = 3,47 - 0,382*2,47 = 2,53;
2) F(c) = 1,94 + 2/1,94 = 2,97;
F(d) = 2,53 + 2/2,53 = 3,32;
3) F(d) > F(c) b d т. е. [a=1 , b=d=2,53]
4). L= b - a = 2,53- 1 = 1,53 , L > E
зад
1) c = a + 0,382( 2,53 - 1 ) = 1 + 0,382*1,53 = 1,58;
d = b - 0,382( 2,53 - 1 ) = 2,53 - 0,382*1,53 = 1,95;
2) F(c) = 1,58 + 2/1,58 = 2,85;
F(d) = 1,95 + 2/1,95 = 2,98;
3) F (d) > Ff(c) b d т. е. [a=1 , b=d=1,95]
4). L= b - a = 1,95- 1 = 0,95 , L > E
зад
1) c = 1 + 0,382( 1,95 - 1 ) = 1 + 0,382*0,95 = 1,36;
d = 1,95 - 0,382( 1,95 - 1 ) = 1,95 - 0,382*0,95 = 1,59;
2) F (c) = 1,36 + 2/1,36 = 2,83;
F(d) = 1,59 + 2/1,59 = 2,85;
3) F(d) > F(c) b d т. е. [a=1 , b=d=1,59]
4). L= b - a = 1,59- 1 = 0,59 , L > E
зад
1) c = 1 + 0,382( 1,59 - 1 ) = 1 + 0,382*0,59 = 1,23;
d = 1,59 - 0,382( 1,59 - 1 ) = 1,59 - 0,382*0,59 = 1,36;
2) F(c) = 1,23 + 2/1,23 = 2,86;
F(d) = 1,36 + 2/1,36 = 2,83;
3) F(d) < F(c) a c т. е. [a=1,23 , b=d=1,59
4). L= b - a = 1,59- 1,23 = 0,36 , L > E
зад
]
1) c = 1,23 + 0,382( 1,59 - 1,23 ) = 1,37;
d = 1,59 - 0,382( 1,59 - 1,23 ) = 1,45;
2) F(c) = 1,37 + 2/1,37 = 2,8298;
F (d) = 1,45 + 2/1,45 = 2,8293;
3) F(d) < F(c) a c т. е. [a=1,37 , b=d=1,59]
4). L= b - a = 1,59- 1,37 = 0,22 , L > E
зад
1) c = 1,37 + 0,382( 1,59 - 1,37 ) = 1,45;
d = 1,59 - 0,382( 1,59 - 1,23 ) = 1,5;
2) F(c) = 1,45 + 2/1,45 = 2,829;
F (d) = 1,506 + 2/1,506 = 2,83;
3) F(d) > F(c) b d т. е. [a=1,37 , b=d=1,5]
4). L= b - a = 1,5- 1,37 = 0,13 , L > E
зад
1) c = 1,37 + 0,382( 1,506 - 1,37 ) = 1,42;
d = 1,506 - 0,382( 1,506 - 1,37 ) = 1,45;
2) F(c) = 1,42 + 2/1,42 = 2,828;
F(d) = 1,454 + 2/1,454 = 2,829;
3) F(d) > F(c) b d т. е. [a=1,37 , b=d=1,45]
4). L= b - a = 1,45- 1,37 =0,08 , L < E
зад
413302,1
828428,2)(min).5
=
=
x
xF
                                          13

             d = b - 0,382( 3,47 - 1 ) = 3,47 - 0,382*2,47 = 2,53;
         2) F(c) = 1,94 + 2/1,94 = 2,97;
             F(d) = 2,53 + 2/2,53 = 3,32;
         3) F(d) > F(c) ⇒ b → d т. е. [a=1 , b=d=2,53]
         4). L= b - a = 2,53- 1 = 1,53 , L > E зад

         1) c = a + 0,382( 2,53 - 1 ) = 1 + 0,382*1,53 = 1,58;
             d = b - 0,382( 2,53 - 1 ) = 2,53 - 0,382*1,53 = 1,95;
         2) F(c) = 1,58 + 2/1,58 = 2,85;
             F(d) = 1,95 + 2/1,95 = 2,98;
         3) F (d) > Ff(c) ⇒ b → d т. е. [a=1 , b=d=1,95]
         4). L= b - a = 1,95- 1 = 0,95 , L > E зад

         1) c = 1 + 0,382( 1,95 - 1 ) = 1 + 0,382*0,95 = 1,36;
             d = 1,95 - 0,382( 1,95 - 1 ) = 1,95 - 0,382*0,95 = 1,59;
         2) F (c) = 1,36 + 2/1,36 = 2,83;
             F(d) = 1,59 + 2/1,59 = 2,85;
         3) F(d) > F(c) ⇒ b → d т. е. [a=1 , b=d=1,59]
         4). L= b - a = 1,59- 1 = 0,59 , L > E зад

         1) c = 1 + 0,382( 1,59 - 1 ) = 1 + 0,382*0,59 = 1,23;
             d = 1,59 - 0,382( 1,59 - 1 ) = 1,59 - 0,382*0,59 = 1,36;
         2) F(c) = 1,23 + 2/1,23 = 2,86;
             F(d) = 1,36 + 2/1,36 = 2,83;
         3) F(d) < F(c) ⇒ a → c т. е. [a=1,23 , b=d=1,59
         4). L= b - a = 1,59- 1,23 = 0,36 , L > E зад]

         1) c = 1,23 + 0,382( 1,59 - 1,23 ) = 1,37;
             d = 1,59 - 0,382( 1,59 - 1,23 ) = 1,45;
         2) F(c) = 1,37 + 2/1,37 = 2,8298;
             F (d) = 1,45 + 2/1,45 = 2,8293;
         3) F(d) < F(c) ⇒ a → c т. е. [a=1,37 , b=d=1,59]
         4). L= b - a = 1,59- 1,37 = 0,22 , L > E зад

         1) c = 1,37 + 0,382( 1,59 - 1,37 ) = 1,45;
             d = 1,59 - 0,382( 1,59 - 1,23 ) = 1,5;
         2) F(c) = 1,45 + 2/1,45 = 2,829;
             F (d) = 1,506 + 2/1,506 = 2,83;
         3) F(d) > F(c) ⇒ b → d т. е. [a=1,37 , b=d=1,5]
         4). L= b - a = 1,5- 1,37 = 0,13 , L > E зад

         1) c = 1,37 + 0,382( 1,506 - 1,37 ) = 1,42;
              d = 1,506 - 0,382( 1,506 - 1,37 ) = 1,45;
         2) F(c) = 1,42 + 2/1,42 = 2,828;
               F(d) = 1,454 + 2/1,454 = 2,829;
         3) F(d) > F(c) ⇒ b → d т. е. [a=1,37 , b=d=1,45]
         4). L= b - a = 1,45- 1,37 =0,08 , L < E зад
5). min F ( x) = 2,828428
x = 1,413302