The Elegant Art of Programming

Introduction

Check the orginial tip to get the point of this alternative

Using the code 

List<double> myList = new List<double>();
myList.Add(1.0);
myList.Add(2.0);
myList.Add(1.0);
 
bool differs = (myList.Distinct().Count() > 1);
 
Console.WriteLine( "All numbers are " + (differs? "not": "") + " the same.");