"""
Simple math utilities for testing modular imports
"""

def add_numbers(a, b):
    """Add two numbers"""
    return a + b

def multiply_numbers(a, b):
    """Multiply two numbers"""
    return a * b

def get_fibonacci(n):
    """Get first n fibonacci numbers"""
    if n <= 0:
        return []
    elif n == 1:
        return [0]
    elif n == 2:
        return [0, 1]
    
    fib = [0, 1]
    for i in range(2, n):
        fib.append(fib[i-1] + fib[i-2])
    return fib

def format_number(num):
    """Format number with commas"""
    return f"{num:,}"