Day_16

🗓️ Day 16: Functions & Functional Programming

Topic: Reusability, Parameterized Functions, and Lambda Expressions.

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🛠️ Core Concepts

1. Function Categories

• Built-in Functions: Provided by Python (e.g., print(), range(), len()).
• User-Defined Functions: Created using the def keyword for specific requirements.

2. Anonymous (Lambda) Functions

Single-line functions without a name, used for short-term logic:

• Syntax: variable = lambda parameters: expression
• Features: No explicit return statement needed; can take multiple parameters.

3. Reusability

• return: Sending processed data back to the main program.
• pass: A placeholder used to avoid errors when a function body is not yet written.

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📝 Practical Implementations

• day16_pbssd_functions.py: Basic function syntax, simple calculators, and lambda practice.