Plz help with this loop problem,Thanks!

Hi,
Im pretty much a beginner. Encountered this problem while practising
Really appreciate it if you could help=).

Im trying to compute (x^k) using a seperate function.

Code:

  1 #include<stdio.h>
  2 #include<math.h>
  3 
  4 int main(void)
  5 
  6 
  7 {
  8     double x;
  9     int k;
 10     double power(double x,int k);
 11 
 12     printf("enter any real no.:\n ");
 13     scanf("%lf", &x);
 14     printf("enter any non-negative no.:\n");
 15     scanf("%i", &k);
 16 
 17     printf("result=%.3f\n",power(x,k));
 18     return 0;
 19 
 20 
 21  }
 22 
 23 
 24  double power(double x, int k)
 25  {
 26      double result;
 27      int loop;
 28      for (loop=1; loop<=k; loop++)
 29          result *= x;
 30          return result;
 31  }

while executing, there is no error msg generated,
However, the output is really huge and obviously wrong.
Have spent the whole afternoon trying to figure out=(.

Please advise

result is not initialized, so it contains random garbage that's multiplied loop times.
If you're using Windows, I would suggest using Visual Studio since it automatically catches these types of errors.
Also up your compiler warnings. Any compiler would happily throw a warning about this.

problem solved!
thanks Elysia=)

Following code with Little modification:-

Code:

#include<stdio.h>
  #include<math.h>
   
   int main(void)
   
   
   {
       double x;
       int k;
      double power(double x,int k);
  
      printf("enter any real no.:\n ");
      scanf("%lf", &x);
      printf("enter any non-negative no.:\n");
      scanf("%i", &k);
  
      printf("result=%.3f\n",power(x,k));
      return 0;
  
  
   }
  
  
   double power(double x, int k)
   {
       double result=1;
       int loop;
       for (loop=1; loop<=k; loop++)
           result *= x;
           return result;
   }

what a strange indentation you have...

Code:

#include<stdio.h>
#include<math.h>

int main(void)
{
	double x;
	int k;
	double power(double x,int k);

	printf("enter any real no.:\n ");
	scanf("&#37;lf", &x);
	printf("enter any non-negative no.:\n");
	scanf("%i", &k);

	printf("result=%.3f\n", power(x,k));
	return 0;
}


double power(double x, int k)
{
	double result=1.0;
	int loop;
	for (loop=1; loop<=k; loop++)
	{
		result *= x;
	}
	return result;
}