Introduction to Functions and Procedures in Programming, Study Guides, Projects, Research of Computer Programming

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Functions & Procedures

Programming Fundamentals

Informatics Engineering

Gunadarma University

Introduction to Functions and Procedures: Functions and procedures are fundamental concepts in programming that allow for code reuse, modularity, and better organization. Both are blocks of code designed to perform specific tasks, but they have some distinctions based on the programming language and the context in which they are used. Key Concepts

1. Functions: o Definition: A function is a block of code that takes input, performs specific operations, and returns an output. o Syntax (Python Example): o Key Features: ▪ Parameters: Inputs to the function. ▪ Return Value: The output of the function.
2. Procedures (Subroutines): o Definition: A procedure is similar to a function but does not return a value. It performs a task but typically does not produce a result. o Syntax (Python Example):

3. Example Usage: Advanced Concepts
4. Default Parameters: o Functions can have default values for parameters. o Example:
5. Variable-Length Arguments: o Functions can accept a variable number of arguments using *args and **kwargs. o Example:

3. Lambda Functions: o Anonymous functions defined using the lambda keyword. o Example: Conclusion Functions and procedures are essential tools in programming for creating reusable and organized code. Functions return values and are used for calculations and operations that need a result, while procedures perform tasks without returning values. Practice defining and using functions and procedures to improve your programming skills. Practice Exercises
4. Functions: o Write a function calculate_circle_area(radius) that returns the area of a circle given its radius. o Write a function is_prime(number) that returns True if the given number is prime and False otherwise.
5. Procedures: o Write a procedure print_greeting(name) that prints a personalized greeting message. o Write a procedure display_list(items) that takes a list of items and prints each item on a new line.
6. Combining Functions and Procedures: o Write a function convert_to_celsius(fahrenheit) that converts a temperature from Fahrenheit to Celsius and a procedure print_temperature_conversion(fahrenheit) that prints the conversion.