//  demonstrates function prototypes
//  STYC++ in 21 
//

#include <iostream.h>

 int Area( int length, int width );

int main()
{

   int myLength;
   int myWidth;
   int myArea;
   
   cout << "Punch in your Length : ";
   cin >> myLength;
   cout << "Punch in your Width : ";
   cin >> myWidth;
   
   myArea = Area(myLength, myWidth);
   
   cout << "My Area is : " << myArea << endl;

   return 1;
      
}

  int Area( int theLength, int theWidth)
	{
      return theLength*theWidth;
	}	
	// end of code     	

// STYC++ in 21 days...chap 5
// demonstrates local vals and params

#include <iostream.h>

float Convert(float);

int main()
{
  
	float TempFer;
	float TempCel;

   while(TempFer != 99)  // the book didn't do while loops yet..cheatin
   {
   cout << "Please enter the temperature in Farenheit: ";
   cin >> TempFer;
   TempCel = Convert(TempFer);
   cout << "Here's the temp in Celcius: " << TempCel << endl;
   }
   return 1;

}

float Convert( float temp)
{
	float cel;
	cel = ((temp - 32 ) * 5) / 9;
	return cel;
}

// STYC++ in 21 chap 5
// demonstrates recursion.....
// fibinacci sequence
//
//

#include <iostream.h>

int fib(int n);

int main()
{
	int n, answer;

	cout << "Enter a number to find : ";
	cin >> n;
	cout << "\n\n";

	answer = fib(n);

	cout << answer << " is the " << n << " fibinacci number\n";

	return 1;
}  // end of main

int fib(int n)
{

	cout << "Processing Fib(" << n << ")...";
	  if (n<3)
	  {
		cout << "Return 1!\n";
		return 1;
          }
	  else
	  {
                cout << "Call fib(" << n-2 << ") and fib(" << n-1 << "). \n";
	 	return ( fib(n-2) + fib(n-1) );
          }
}	

// end of source