Description: Write a function that takes a string as an argument and displays the letters backward, one per line and write a function that takes a list of numbers and returns the cumulative sum; that is, a new list where the ith element is the sum of the first i+1 elements from the original list. For example, the cumulative sum of [1, 2, 3] is [1, 3, 6].

Work:

#Al Rivera #Date : 3/20/13 #Session: 9310 #Lab 4: String and Lists

print(‘————String————-‘) #ask user to input name and print reverse of it

index = -1 name = raw_input(‘Enter a name:’)

while index >= -len(name):     letter = name [index]     print letter     index = index – 1     print(‘————-List—————‘)

def cumil_sum(list):     x = 0     total = 0     while x < len(list):         total += list[x]         print total         x = x + 1     return total list = [1,2,3] print cumil_sum(list)

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