In C++, a function is a block of code which only runs when it is called. You can pass data, known as parameters, into a function. Functions are used to perform certain actions, and they are important for reusing code: Define the code once, and use it many times. C++ provides some pre-defined functions, such as main(), which is used to execute code. But you can also create your own functions to perform certain actions.

For this discussion assignment, define what a function is, provide the syntax for a typical function definition, describe its various types and provide specific examples for each to support your understanding.