Learn Git in a Day

git switch main
git pull

git switch -c feature/absolute

cat << 'EOF' > calculator.py
# calculator.py - A simple calculator
# Hosted on GitLab

import math

def add(a, b):
    """Add two numbers and return the result."""
    return a + b

def subtract(a, b):
    """Subtract b from a and return the result."""
    return a - b

def multiply(a, b):
    """Multiply two numbers and return the result."""
    return a * b

def divide(a, b):
    """Divide a by b and return the result."""
    if b == 0:
        return "Error: Cannot divide by zero"
    return a / b

def power(a, b):
    """Raise a to the power of b and return the result."""
    return a ** b

def modulo(a, b):
    """Return the remainder of a divided by b."""
    if b == 0:
        return "Error: Cannot divide by zero"
    return a % b

def square_root(a):
    """Return the square root of a."""
    if a < 0:
        return "Error: Cannot compute square root of negative number"
    return math.sqrt(a)

def floor_divide(a, b):
    """Divide a by b and return the integer part (floor division)."""
    if b == 0:
        return "Error: Cannot divide by zero"