a, g, b .
a f(X) .
g , f(X), , f(X), .
b , f(X),, , , f(X), .
, , . , , , . a=1. , a>1 . , a , .. a. , a , .. . a=1 .
b g . , : 0,4£b£0,6; 2£g£3. , b , g. bÎ(0;0,4) , b>0,6 .
.
f(X)=4(x1-5)2+(x2-6)2.
, X1=(8;9)T, X2=(10;11)T, X3=(8;11)T.
a=1, g=2. : f(X1)=45; f(X2)=125; f(X3)=65.
XL=X1. Xh=X2. , X2.
.
Xh X4 ,
Xn+3= X5= X4+a(X4- X2)= ,
f(X5)=13.
f(X5)< f(XL)=45, ,
Xn+4= X6= X4+g(X5- X4)= ,
f(X6)=8,
f(X6)< f(XL), Xh Xn+4, X2= X6 .
.4 f(X)=4x12+x22-40x1-12x2+136.
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.4. .
, . , 2, 5, 10, 20 30. Xj(i), j i- . , , f(X) . (6)-(9) .