text.c

#include <stdio.h>
#include <conio.h>
#define g(x) sqrt(x+6)
#include <math.h>
void main()
{
    float x,err;
    scanf("%f",&x);
    float x1;int i=0;
    do
    {
        x1=g(x);
        i++;
        err=fabs(x1-x);
        printf("%d approx is %f\n",i,x1);
        x=x1;
    }while(err>0.0005);
    printf("final roots are %f\n",x);
    getch();
}
/*#include<stdio.h>
#include<stdlib.h>
#include<math.h>


#define gd(a0) (0.5/sqrt(a0+6))
#define f(x) (x*x-x-6)
#define MAX_COUNT 5000
int main()
{
int count=0;
float x0=0,x1=0,error=0;
char iffound=0;
printf("Please enter the initial value: ");
scanf("%f",&x0);
do{
        x1=g(x0);
        error=fabs(x1-x0);
        if(count==0)
        {
                if(gd(x0)>1){
                        printf("\nThe equation is not convergent");
                        iffound=1;
                        break;
                }
                else{
                        printf("\n   i    xi      f(xi)          error");
                        printf("\n-------------------------------------------");
                }
        }
        printf("\n %3d  %3.5f    %3.5f  %3.5f",count,x0,f(x0),count==0?0:error);
        x0=x1;
        count++;
}while(error>0.0005 && count<MAX_COUNT);

if(!iffound)
        printf("\nThe required root is: %f\n",x0);
return 0;
}*/