Metode Secant

#include <iostream.h>

#include <conio.h>

#include <stdio.h>

#include <math.h>

#define epsilon 0.001

int main()

{

  float g,g1,g2,v,v1,v2,x,dx;

  int converged=0,i;

  printf("Input Nilai Xo : ");

  scanf("%f",&g1);

  printf("Input Nilai X1 : ");

  scanf("%f",&g2);

  i=1;

  while (converged==0)

   {

     printf("\n iteration no=%d\n",i);

     v=g1*g1-6*g1+8;

     printf("f(X1)=%lf\n",v);

     v1=g2*g2-6*g2+8;

     printf("f(X2)=%lf\n",v1);

     x=g2-((v1*(g1-g2))/(v-v1));

     printf("Xi+1=%lf\n",x);

     dx= x*x-6*x+8;

     printf("f(Xi+1) =%lf\n",dx);

     g1=g2;

     g2=x;

     if (fabs(dx)<=epsilon)

       {converged=1;}

     printf("Solusi Xi+1=%lf\n",x);

     i=i+1;

  }

getch();

}