As those enrolled in MITx 6.002 are expected to know basic calculus and linear algebra, upon member request, this refresher course has been created. It will be fast paced a little as there is a lot to cover (I took calculus for 2 semesters!) but I will supply materials for you to study and practice and also solve some examples.Part I is about calculus. We start with functions, dive into concept of limit which forms the base of derivative and then move onto inverse of derivative, integral.