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Take a look at the following sites for more information about functions:
- The ad-saturated About.com has a portion of their C programming tutorial dedicated to functions that provides some good information (They decide to introduce the concept of the function prototype - not required when functions are defined in the same file and before the functions that call them - early; we will cover these in an upcoming module).
- Once again, HowStuffWorks.com provides a very good, brief tutorial on functions, and wait to cover function prototypes until the critical aspects of functions are made clear.
- Cardiff University's School of Computer Science includes a good introduction to functions in their C tutorial as well.
- Another British college, the University of Strathclyde, includes a primer on functdions in their IT Services pages.
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