Лабораторная работа: Градієнтні методи

void main ()

{int k, i,N,N0,N1,l1,l2;

double a,b,d,ymin,xmin1,xmin2,e2,dalph;

double x [3000] [2]; double y [10];

clrscr ();

x [0] [1] =-1;

x [0] [2] =0;

e2=0.0001;

double z1,z2,y1,y2,e,p,alpmin,g1,g2;

int m;

cout<<"Metod naiskor. spuska"<<endl;

k=0; N0=0; N1=0;

z1=df1 (x [0] [1],x [0] [2]);

z2=df2 (x [0] [1],x [0] [2]);

N1=N1+2;

dalph=2.2;

mm1:

m = 0;

y1=f (x [k] [1],x [k] [2]); N0++;

metka:

y2=f (x [k] [1] - (m+1) *dalph*z1,x [k] [2] - (m+1) *dalph*z2);

N0++;

if (y2<y1)

{m++; y1=y2; goto metka; }

else

{b= (m+1) *dalph;

if (m==0)

{a=0; }

else {a= (m-1) *dalph; }