#include <stdio.h>
#include <conio.h>
#include <math.h>
#define F(x) ( 3*x + sin(x) - exp(x) )
#define EPS 0.00005
main()
{
int i, n;
double a, b, x;
double xl, e;
a = 0;
b = 1;
printf("\n Enter the no of total iterations : ");
scanf("%d", &n);
printf("\n Iter. \t A \t\t B \t\t X=(A+B)/2 \t F(X)");
for( i=1; i<=n ; i++)
{
x = ( a + b ) * 0.5;
printf("\n %2d \t %f \t %f \t %f \t %f", i, a, b, x, F(x));
if( F(x)*F(a) < 0 )
b = x;
else
a = x;
e = fabs( (xl - x) / xl );
if( e < EPS )
break;
xl = x;
}
if( e <= EPS )
printf("\n\n Root = %f", x);
else
printf("\n\n INSUFFICIENT ITERATIONS ");
getch();
}
Output