math module

import math

# constants
print(math.pi)
# 3.14159265359
print(math.e)
# 2.71828182846

# numerical operations
print(math.floor(2.945))
# 2
print(math.trunc(2.945))
# 2
print(math.factorial(5))
# 120
print(math.exp(1))
# 2.71828182846
print(math.sqrt(16))
# 4.0