Converts Celsius to Fahrenheit

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Test1._1
{

    class TemperatureConverter
    {
        // Converts Celsius to Fahrenheit
        public static double CelsiusToFahrenheit(double celsius)
        {
            return celsius * 9 / 5 + 32; // Linear transformation from Celsius to Fahrenheit
        }
        public static double FahrenheitToCelsius (double fahrenheit)
        {
            return (fahrenheit - 32) * 5 / 9;  // Linear transformation from Fahrenheit to Celsius

        }


    }
    class Program
    {
        static void Main(string[] args)
        {
            // Test data
            double[] testCelsius = new double[] { 0, 100, -40 };
            double[] testFahrenheit = new double[] { 32, 212, -40 };

            // Test Celsius to Fahrenheit conversion
            foreach (double temp in testCelsius)
            {
                Console.WriteLine($"{temp} degrees Celsius is equal to {TemperatureConverter.CelsiusToFahrenheit(temp)} degrees Fahrenheit");
            }

            // Test Fahrenheit to Celsius conversion
            foreach (double temp in testFahrenheit)
            {
                Console.WriteLine($"{temp} degrees Fahrenheit is equal to {TemperatureConverter.FahrenheitToCelsius(temp)} degrees Celsius");
            }
        }
    }
}