#!/usr/bin/env python3
import math

''' using square root function '''
print('''
    import math
    math.sqrt(25)''')
x = math.sqrt(25)
print(x)
print()

''' ceil function - next integer value  '''
print('math.ceil(2.2)')
print(math.ceil(2.2))
print()

''' floor function - previous integer value '''
print('math.floor(2.2)')
print(math.floor(2.2))
print()

''' pow function '''
print('math.pow(2, 3)')
print(math.pow(2, 3))
print()

''' pi function '''
print('math.pi')
print(math.pi)
print()

''' e function '''
print('math.e')
print(math.e)
print()

import math as m

''' import math as m '''
print('import math as m')
print('math.sqrt(25)')
print(math.sqrt(25))
print()
print('m.sqrt(25)')
print(m.sqrt(25))
print()

''' import some specific functions '''
print('from math import sqrt, pow')
from math import sqrt, pow
print('pow(2,4)')
print(pow(2,4))
print()
print('sqrt(16)')
print(sqrt(16))
print()