The document is a letter from a mathematics department recommending a student for an independent study course in computing based on their success in AP Computer Science. The independent study course, called Computing Independent Study (CIS), is a year-long math credit that focuses on building and maintaining a Linux cluster and exploring emerging applications in scientific and super computing. Students who have already taken AP Computer Science and are seniors are eligible to take CIS, which meets every other week after school to install new software, discuss research projects, and cover topics related to parallel and scientific computing.