المتجهات (Vectors)

# Monthly expenses: [food, transport, bills]
september = [3000, 800, 1200]
october = [3200, 750, 1100]

# Add two vectors: element by element
total = [a + b for a, b in zip(september, october)]
print("Two months:", total)

# Multiply by a scalar: prices went up 10%
inflated = [x * 1.10 for x in september]
print("After +10%:", [round(x) for x in inflated])

import math

# Walk 3 km east and 4 km north: how far from start?
move = [3, 4]
length = math.sqrt(sum(x ** 2 for x in move))
print("Distance:", length, "km")

# Distance between two apartments = length of their difference
a = [120, 3]
b = [100, 2]
diff = [x - y for x, y in zip(a, b)]
print("Difference:", round(math.sqrt(sum(d ** 2 for d in diff)), 2))