Ketma-ket yaqinlashish (iteratsiya) usuli. Kesmani ikkiga bo’lish usuli

Ketma-ket yaqinlashish (iteratsiya) usuli. Kesmani ikkiga bo’lish usuli.

1) tg(0.44x+0.3)=x²

2) x³-0.1x²+0.4x+1.2=0

#include

#include

using namespace std;

float F(float x){

return tan (0.44*x+0.3)-x*x;

}

int main(){

float a,b,t,x,e=0.0001;

cout<<"a="; cin>>a;

cout<<"b="; cin>>b;

while(fabs(b-a)>=e){

t=(a+b)/2;

if (F(t)==0) break;

if (F(a)*F(t)<0) b=t;

if (F(b)*F(t)<0) a=t;

}

x=(a+b)/2;

cout<

2)

Dastur kodi

/*

) 2) x3-0.1x2+0.4x+1.2=0

*/

#include

#include

using namespace std;

float F(float x){

return x*x*-0.1*x*x+0.4*x+1.2;

}

int main(){

float a,b,t,x,e=0.0001;

cout<<"a="; cin>>a;

cout<<"b="; cin>>b;

while(fabs(b-a)<=e){

t=(a+b)/2;

if (F(t)==0) break;

if (F(a)*F(t)<0) b=t;

if (F(b)*F(t)<0) a=t;

}

x=(a+b)/2;

cout<

}

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