//Ryan Shahriyarpour   CS1A    Carl Argila CH6 HW  Q:7
//
/*****************************************************************************
 * 
 * Fahrenheit to Celsius Table
 * 
 *********************
 * 
 * This program displays a table of Fahrenheit temperatures from 0 to 20 and
 * their Celsius equivalents. The function celsius does the conversion:
 * C = (5/9) * (F - 32)
 * 
 * INPUT
 *  None (fixed values used)
 * 
 * OUTPUT    
 *  Table showing Fahrenheit temperatures and their Celsius equivalents
 * 
 ****************************************************************************/
 
#include <iostream>
#include <iomanip>
using namespace std;
 
// Function prototype
double celsius(double fahrenheit);
 
int main()
{
    cout << "Fahrenheit\t\tCelsius\n";
    cout << "---------------------------------------\n";
 
    // Display temperatures from 0 to 20 Fahrenheit
    for (int fahrenheit = 0; fahrenheit <= 20; fahrenheit++)
    {
        cout << fahrenheit << "\t\t\t" << fixed << setprecision(1)
             << celsius(fahrenheit) << endl;
    }
 
    return 0;
}
 
// Accepts a Fahrenheit temperature and returns it in Celsius
// (5.0/9.0 is used instead of 5/9 to avoid integer division)
double celsius(double fahrenheit)
{
    return (5.0 / 9.0) * (fahrenheit - 32.0);
}

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