//Listing 5.2. The use of local variables and parameters.
  #include <iostream.h>

 float Convert(float);
 int main()
 {
 float TempFer;
 float TempCel;

 cout << "Please enter the temperature in Fahrenheit: ";
 cin >> TempFer;
 TempCel = Convert(TempFer);
 cout << "\nHere's the temperature in Celsius: ";
 cout << TempCel << endl;
 return 0;
 }

 float Convert(float TempFer)
 {
 float TempCel;
 TempCel = ((TempFer - 32) * 5) / 9;
 return TempCel;
 }