====== Functions and Modules ======

=== Functions in Python ===

Functions in Python are defined using the def keyword.

**Example:**

<code>
def greet(name):
    return f"Hello, {name}!"

print(greet("Alice"))  # Output: Hello, Alice!
</code>
=== Lambda Functions ===

Lambda functions are anonymous functions defined using the lambda keyword.

**Example:**

<code>
multiply = lambda x, y: x * y
print(multiply(3, 4))  # Output: 12
</code>

=== Modules in Python ===

Modules allow us to organize our code into separate files and reuse them.

**Example:**
<code>
import math
print(math.sqrt(16))  # Output: 4.0
</code>