static void Main()
{
// Try calling some static functions.
WriteLine($"Pi is {Math.GetPi()}");
int x = Math.GetSquareOf(5);
WriteLine($"Square of 5 is {x}");
// Instantiate a Math object
var math = new Math(); // instantiate a reference type
// Call instance members
math.Value = 30;
WriteLine($"Value field of math variable contains {math.Value}");
WriteLine($"Square of 30 is {math.GetSquare()}");
ReadLine();
}
