Programming for Data Science: Lec 4, Built-in/Custom Functions in Python, and Lambda Functions

#python #datascience #machinelearning
Definition: In programming, a function is a block of code that executes upon being called.
Input Arguments: Functions can receive input arguments provided by the user or calling entity.
Output Parameters: Functions produce output parameters, representing the results after completing their task.
Different types of functions in Python:
Built-in Functions
Predefined functions in Python's standard library.
Examples: `print()`, `len()`, `type()`.
Custom Functions
User-defined functions created by the programmer.
Defined using the `def` keyword.
Nested Functions
Functions defined within another function.
Lambda Functions
Anonymous functions created using the `lambda` keyword.
Typically used for short, simple operations.