All numeric and enumeration types define a "greater than or equal" relational operator (>=) that returns true if the first operand is greater than or equal to the second, false otherwise.
User-defined types can overload the >= operator (see operator). If >= is overloaded, <= must also be overloaded.
using System; class Test { public static void Main() { Console.WriteLine(1.1 >= 1); Console.WriteLine(1.1 >= 1.1); } }
True True
C# Operators | CLR 7.9 Relational operators