#include <iostream.h>
#include <math.h>

int main()
{
   double usenum;

   cout << "This program calculates the square root and\n"
	<< "reciprocal (1/number) of a number\n"
	<< "\nPlease enter a number: ";
   cin  >> usenum;
   if (usenum < 0.0)
     cout << "The square root of a negative number does not exist.\n";
   else
     cout << "The square root of " << usenum
	  << " is " << sqrt(usenum) << endl;
   if (usenum == 0.0)
     cout << "The reciprocal of zero does not exist.\n";
   else
     cout << "The reciprocal of " << usenum
	  << " is " <<  (1.0/usenum) << endl;

  return 0;
}