Functions and procedures are important parts of programming. They help make code easier to use again in the future.

What Are They?

• Function: A piece of code that does a specific job and can give back a value.
• Procedure: Similar to a function, but it does not give back a value; it just does something.

Why Use Them?

1. Breaking Things Down: They make big, hard problems into smaller, easier pieces.

   • Some studies say this can speed up how fast we create software by about 30%.

2. Easy to Change: If you need to make a change, you only have to do it once. This change affects all the places where the function or procedure is used.

3. Teamwork: Different people can work on different functions at the same time. This helps everyone get things done faster.

Examples

• Function Example:

  def add(a, b):
      return a + b
  

• Procedure Example:

  def print_message(message):
      print(message)
  

Cool Facts

• Programmers say they get 50% more work done when they use functions and procedures that can be reused.
• Using this type of code can cut down mistakes by about 40%, making the software more reliable.

In short, using functions and procedures not only helps with reusing code but also makes programming better and easier!