More about literation

Question 1

For loop (extra)

Answer 1

# Function definition 
def sum_to(n): 
 """ Return the sum of 1 + 2 + 3 ... + n """ 
 sum = 0 
 for num in range(1, n + 1): 
 sum = sum + num 
 return sum

Question 2

While loop

Answer 2

while boolean expression:

statements # executed if condition evaluates to True

Question 3

While loop example

Answer 3

# Function definition 
def sum_to(n): 
 """ Return the sum of 1 + 2 + 3 ... + n """ 
 sum = 0 
 num = 1 
 while num <= n: 
 sum = sum + num 
 num = num + 1 
 return sum

Question 4

Choosing between for and while

Answer 4

–When you know the number of times to repeat, you can use a for loop
–On the other hand, when you are required to repeat until some condition is
met, you’ll need a while loop