Functions
Explore how to create and use functions in Python, including defining parameters, using default arguments, understanding scope, and returning values. This lesson helps you write reusable code blocks, important for scientific and engineering programming.
We'll cover the following...
We'll cover the following...
A function is a reusable set of operations. We don’t need to write the set of instructions again for different inputs, we can just call the function again.
There are two basic types of functions in Python:
- Built-in functions
- User-defined functions
It is good practice to define all our functions first and then begin the main code. Defining them first ensures that they can be used anywhere in the program safely.
Declaration #
In Python, a function is defined using the def keyword in the following format:
def functionName(parameters):
operations
The functionName is ...