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.
Function is C language term, it refers to a piece of code and the function name will be the identifier to use this function. Method is the OO term, typically it has a this pointer in the function parameter. You can not invoke this piece of code like C, you need to use object to invoke it.
As stated above, the main difference between an equation and a function is that an equation usually has only one input that will give lead to the expressions being equal. Whereas, a function has various inputs, each of which will give a output.