02.PrimitiveDataTypesVariables/03.ComparingFloats

//Problem 3. Comparing Floats
//Write a program that safely compares floating-point numbers with precision eps = 0.000001.
//Note that we cannot directly compare two floating-point numbers a and b by a==b because of the nature of the floating-point arithmetic.
//Therefore, we assume two numbers are equal if they are more closely to each other than a fixed constant eps.

using System;

class ComparingFloats
{
    static void Main()
    {
        decimal firstNumber;
        decimal secondNumber;
        Console.WriteLine("Enter the first Decimal number :");
        firstNumber = decimal.Parse(Console.ReadLine());
        Console.WriteLine("Enter the second Decimal number :");
        secondNumber = decimal.Parse(Console.ReadLine());
        //Compare First and Second Number with precision eps=0.000001
        bool compare = (Math.Abs(firstNumber - secondNumber) < 0.000001m);
        if (compare)
        {
            Console.WriteLine("The numbers {0} and {1} are equal.", firstNumber, secondNumber);
        }
        else
        {
            Console.WriteLine("The number {0} and {1} are not equal.", firstNumber, secondNumber);
        }
    }
}