Python 3.7.3 (v3.7.3:ef4ec6ed12, Mar 25 2019, 16:52:21) 
[Clang 6.0 (clang-600.0.57)] on darwin
Type "help", "copyright", "credits" or "license()" for more information.
>>> import turtle
>>> t = turtle.Turtle()
>>> for i in range(6):
	t.forward(i*10)
	t.left(45)

	
>>> t.reset()
>>> for i in range(6):
	t.forward(i*10)
	t.left(i*45)

	
>>> for i in range(6):
	t.forward(i*100)
	t.left(i*45)

	
>>> t.reset()
>>> for i in range(6):
	t.forward(i*50)
	t.left(i*45)

	
>>> def mib(n):
	if n==0:
		return(1)
	else:
		returns(2*mib(n-1)+1)

		
>>> mib(5)
Traceback (most recent call last):
  File "<pyshell#20>", line 1, in <module>
    mib(5)
  File "<pyshell#19>", line 5, in mib
    returns(2*mib(n-1)+1)
NameError: name 'returns' is not defined
>>> def mib(n):
	if n==0:
		return(1)
	else:
		return(2*mib(n-1)+1)

	
>>> mib(5)
63
>>> def e1(n):
	s = 0
	for i in range(0,n):
		term = 1/math.factorial(i)
		s = s + term
	return(s)

>>> import math
>>> math.factorial(4)
24
>>> math.factorial(0)
1
>>> e1(4)
2.6666666666666665
>>> e1(10)
2.7182815255731922
>>> def e2(n):
	s = 1
	den = 1
	for i in range(1,n):
		den = den*i
		term = 1/den
		s = s + term
	return(s)

>>> def e1(n):
	s = 0
	for i in range(0,n):
		term = 1/math.factorial(i)
		s = s + term
	return(s)

>>> e2(10)
2.7182815255731922
>>>