What is function? Advantage of function.

A function is a self contained block of statement that performs. Some specific and well defined task. A function can be user define or pre-defined function. User defined function is declared, defined and used by the programmer according to their need. Library function is a predefined function in a header file programmer can use this function by simple including header file in the program.

 

Advantages of function are:

• Function increase responsibility of program code.
• Program development is faster.
• Program debugging is faster and easier.
• Length of the program can be reduced.
• With function, it is easier to understanding the logic involve in the program.
• Function reduces program complexity.
• Recursive call is possible through function.
• Function increases program readability.

 

What is recursive function?

A recursive function is a function that called itself. To be a recursive function.

• It should call itself
• It should have a stopping condition
• Every time the function is called, it should be closer to the stopping condition