, , , , . , , , .
f(), ( ).
:
1
f() | |||
:
xj (j=1÷ n), f(X) =
= f(x1, x2, ,xn)max (min)
gi(x1, x2, ,xn) ≤ (≥, =) ai0, i=1÷m;
f g - n .
, , . :
. , ;
, , . , , ;
() . ;
, , , , (, ) .
.
.
1. .
1. :
(x1 2)2 + (x2 2)2 ≤ 4
(x1 3)2 + (x2 3)2 ≥ 1
x1³ 0; x2³ 0
maxZ = 1,5x1+1,5x2 .
.1. -
: (x1 2)2 + (x2 2)2 = 4. (2; 2) , =2.
: (x1 3)2 + (x2 3)2 =1. (3; 3) , 1.