The list type doesn't have operator minus defined on it
To solve the first problem, just make the list items be floats or whatever: Skip the quotes
To solve the second problem, you can iterate over the lists in a variety of ways.
f you understand list comprehension, and the zip function, you could do something like zip the two lists into tuples then subtract tuple at index 1 from the tuple at index 0. I'm not going to give you the answer: Look up list comprehension and the built in function zip However, I will note that I solved your problem with a single short line of code.
Another way to do it would be to do something like
result = 
for index in range(len(l1):
# do something useful with l1[index], l2[index] and result
What happens in either case if the lists are not the same length? What should you do about that possibility?
Need some help with this Array. I am trying to get the sum of the even numbers and the sum of the odd numbers using a for each loop. I know the answers to what I am trying to achive are sum of even = 84 and the sum of ...
I have a 2d matrix with dimension (3, n) called A, I want to calculate the normalization and cross product of two arrays (b,z) (see the code please) for each column (for the first column, then the second one and so on).
the function that I created to find the ...