Hi all,

I have written a program to find the reciprocal of an input number by using newton rhapson iterative method. Below is the algorithm implementation in C:

```
#include<stdio.h>
#include<stdlib.h>
#include<math.h>
int main()
{
double guess,newguess,input,error=1.0;
printf("Enter the input number");
scanf("%f",&input);
printf("Enter the guess for the reciprocal of the input number between -1.0 and 1.0");
scanf("%f",&guess);
while(error>0.0001)
{
newguess=guess*(2-(input*guess));
error=newguess-guess;
guess=newguess;
}
printf("The reciprocal of the input number is %f",newguess);
system("pause");
return 0;
}
```

When I enter 3 as my input number, i get an absurd answer. On using hand-calculations on paper, I am converging to the right value of the reciprocal which is .33. Kindly point out the errors. Thank you.