6.04: Abstraction through Functions; Introduction to Recursion

Description
Function is a subprogram / sub module whih has to always return a value. With the help of procedures and functions modularity is possible. In practice there are two types of functions library functions and user defined functons. In this lecture the concept of recurssion is also explained that calling the same function in that function it self. Example factorial(x).

"Prof. Eric Grimson& Prof. John Guttag, 4: Abstraction through Functions; Introduction to Recursion: 6.00 Introduction to Computer Science and Programming, Massachusetts Institute of Technology: MIT OpenCourseWare),http://ocw.mit.edu (11-11-2011). License: Creative Commons BY-NC-SA: http://ocw.mit.edu/terms/#cc"