aoqi@0: sealed? false
aoqi@0: frozen? false
aoqi@0: sealed? true
aoqi@0: deleted num? false
aoqi@0: num = 2.718281828459045
aoqi@0: assign PI to num
aoqi@0: num = 3.141592653589793
aoqi@0: frozen? true
aoqi@0: assign 1729 to num
aoqi@0: num = 3.141592653589793