Open course ware

ANNOUNCER: Open content is provided under a creative commons license. Your support will help MIT OpenCourseWare continue to offer high-quality educational resources for free. To make a donation, or view additional materials from hundreds of MIT courses, visit MIT OpenCourseWare at ocw.mit.edu . PROFESSOR ERIC GRIMSON: Last time, we ended up, we sort of did this tag team thing, Professor Guttag did the first half, I did the second half of the lecture, and the second half of the lecture, we started talking about complexity. Efficiency. Orders of growth. And that's what we're going to spend today on, is talking about that topic. I'm going to use it to build over the next couple of lectures. I want to remind you that we were talking at a fairly high level about complexity. We're going to get down into the weeds in a second here. But the things we were trying to stress were that it's an important design decision, when you are coming up with a piece of code,...

ANNOUNCER: Open content is provided under a creative commons license. Your support will help MIT OpenCourseWare continue to offer high quality educational resources for free. To make a donation, or view additional materials from hundreds of MIT courses, visit MIT OpenCourseWare at ocw.mit.edu . PROFESSOR JOHN GUTTAG: OK. I finished up last time talking about lists. And I pointed out that lists are mutable, showed you some examples of mutation. We can look at it here; we looked at append, which added things to lists, we looked at delete, deleting things from a list. You can also assign to a list, or to an element of a list. So ivy sub 1, for example, could be assigned minus 15, and that will actually mutate the list. So heretofore, when we wrote assignment, what we always meant, was changing the binding of a variable to a different object. Here, we are overloading the notation to say, no, no, ivys is still bound to the same object, but an element of ivys is bound to a diff...

okay and open course was taping this class if you don't want to be on camera you have a right not to be on camera we'll get to why you do later okay in about two slides and just you should let Tom know that's Tom and Alicia from OpenCourseWare okay so in this class we can talking about copyright and about the law because sometimes people talk about copyright in isolation especially people who are really just interested in copyright and in my opinion that's a mistake because copyright is not really special Congress passes lots of laws that they're like about corn subsidies or international trade or guns or you know all sorts of things and copyright is really not special so to understand copyright you would have to understand the law or at least the basics of the law so today we're going to talk a bit about copyright and then we're going to talk about American law in general and some of you that might be kind of boring but I I think it's thri...