Value-Returning Functions

• A value-returning function is a program routine called for its return value and is therefore similar to a mathematical function.

Example

• Function name: avg
• Takes three arguments: n1, n2, and n3
• Calculates and returns the average of the three arguments.
• Function call example: avg(10, 25, 16) evaluates to the calculated average.
• Return statement: return expr where expr is the expression that holds the result.