Python の数値と演算子

a = 17
b = 5

print("a + b =", a + b)     # addition
print("a - b =", a - b)     # subtraction
print("a * b =", a * b)     # multiplication
print("a / b =", a / b)     # division always returns a float
print("a // b =", a // b)   # floor division drops the remainder
print("a % b =", a % b)     # modulo: the remainder
print("a ** 2 =", a ** 2)   # power

# Augmented assignment updates a variable in place.
total = 10
total += 5
total *= 2
print("total =", total)

# Comparison operators return True or False.
print(a > b, a == 17, a != b)

# round() and abs() are built in.
print(round(3.14159, 2), abs(-8))