, m Q() = Q(x1, x2, , xm), . , , Q -Q.
Q()=Q(x1,x2,,xm) * Q*=f(*). *Î Rm Q , Î Rm Q(*) £ Q(). Q(*) Q Rm. *ÎRm Q, d - Ud (d>0), Î d = Ud Q(X*) £ Q(X).
Q , , ( ):
, , , . , Q(x, y) :
,
:
. , , , . , , [1].
z = f(x1, x2, xn)
MatLab :
[X, Z] = fminsearch(name, x0),
:
name , n ;
x0 n , ;
X n , , ;
Z X.
fminsearch() f(x1, x2) = x12 + x22 - x2 - 2x1 + 2.
. 2.6.1-1. ezsurf()
(. 2.6.1-1) ezsurf(), : , , .
>> ezsurf ('x1.^2+x2.^2-x2-2*x1+2', [-2 2], [-2 2])
m- (. 2.6.1-2).
. 2.6.1-2. F(x)
Matlab minsearch() (. 2.6.1-3).
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. 2.6.1-3. fminsearch()