C# language feature:
applies to
benefit
how to use
using static <namespace>;
example:
void Import_of_static_type_members_into_namespace()
{
// 1) don't forget to include 'using static System.Math;'
// 2) omit namespace when referencing static method
double result = Sqrt(55);
// previously
double oldway = System.Math.Sqrt(55);
}