On the national level, Norwell is a part of Massachusetts's 9th congressional district, and is currently represented by Bill Keating. The state's senior (Class II) member of the United States Senate, elected in 2013, is Ed Markey.
As it happens sin() and cos() are also functions. A function has another property: all calls to a function with the same parameters, should return the same result. A method, on the other hand, is a function that is related to an object in an object-oriented language. It has one implicit parameter: the object being acted upon (and it's state).
In Python, all functions (and as such also methods) are objects which can be passed around and played with. So the difference between unbound and bound methods is: 1) Bound methods. Bound methods are methods that belong to instances of a class. In this example, instance.method is bound to the instance called instance.