import numpy as np

# 연산

print("==== 연산 =====")
a = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]])
b = np.ones(3, dtype=int)

print("> a")
print(a)
print("\n")
print("> b")
print(b)
print("\n")

print("> a + b")
print(a + b)
print("\n")
print("> a - b")
print(a - b)
print("\n")
print("> a * b")
print(a * b)
print("\n")
print("> a / b")
print(a / b)
print("\n")

#  ** 제곱
# a ** 2

# // 몫
#  a // b
