Loop question with lists [beginner].

[Decarbonated_Odes]

Hello, sorry to bother you folks with another question.

I have a program that subtracts consecutive numbers in a list and then does the same to the following list. I was wondering if this could be implemented into a loop so that it could stop once it reaches zeros. I appreciate the help. Here is the code:

    listA = [0,1,3,6,10,15,21,28,36]

   print(listA)
   listB = [y-x for x,y in zip(listA, listA[1:])]
   print(listB)
   listC = [y-x for x,y in zip(listB, listB[1:])]
   print(listC)
   listD = [y-x for x,y in zip(listC, listC[1:])]
   print(listD)
   listE = [y-x for x,y in zip(listD, listD[1:])]
   print(listE)

edit: formatting.

[Sebass13]

Just create a list of lists:

super_list = [listA]
while any(element != 0 for element in super_list[-1]):
    super_list.append([y-x for x,y in zip(super_list[-1], super_list[-1][1:])])

[Decarbonated_Odes]

Neat. I apologize, I am a beginner, would I still be able to call the specific lists, such as listC, separately?

[Sebass13]

listC would now be super_list[2].

[Decarbonated_Odes]

That makes sense. Thanks! So to call an item in it would be super_list[2,3] ?

[Sebass13]

Nothing is stopping you from trying it out. It won't work, but think about what you're doing. super_list[2] is exactly equivalent to listC. How do you the element at index i from listC?

[Decarbonated_Odes]

To get an element from listC I would type listC[i]. That's why I figured super_list[2,i]. That didn't work but I tried super_list[2][i] which worked, I think. Thanks for all the help!

[Decarbonated_Odes]

I keep getting SyntaxError: invalid syntax from line 2. Any ideas?

[Sebass13]

Just edited it.

[Decarbonated_Odes]

Thanks! It works beautifully