public static Celsius operator -(Celsius c, Kelvin k)
{
Celsius fResult = new Celsius(c.GetTemperature() - ((Celsius)k).GetTemperature());
return(fResult);
}
public static Celsius operator -(Celsius c, Fahrenheit f)
{
Celsius fResult = new Celsius(c.GetTemperature() - ((Celsius)f).GetTemperature());
return(fResult);
}