Exercise[6B(d)], Let Us C Solution

 Exercise[6B(d)]

The natural logarithm can be approximated by the following series.
x-1/x+1/2(x-1/x)^2+1/2(x-1/x)^3+1/2(x-1/x)^4+...
If x is input through the keyboard,write a program to calculate the sum
of first seven terms of this series.  */
#include<stdio.h>
#include<math.h>
int main()
{
	int i;
	float x,d,p,r,res=0;
	printf("Enter the value of x:");
	scanf("%f",&x);
	d=(x-1)/x;
	for(i=2;i<=7;i++)
	{
		p=pow(d,i);
		r=p/2;
		res=res+r;
	}
	res=d+res;
	printf("Result=%f",res);
	return 0;
}