464 This question already has answers here: How do I add together integers in a list (sum a list of numbers) in python? (5 answers) How can I iterate over overlapping (current, next) pairs of values …

Here is my code, I need to sum an undefined number of elements in the list. How to do this?

Nov 5, 2015 · You sum the start with the contents of the iterable you provide as the first argument. sum doesn't restrict the type of start to an int in order to allow for various cases of adding.

Dec 17, 2012 · Suppose I have a list of integers like [2, 4, 7, 12, 3]. How can I add all of the numbers together, to get 28?

Feb 17, 2013 · python list python-3.3 edited Oct 12, 2019 at 18:35 Arkistarvh Kltzuonstev 6,968 7 32 62

Likewise you wouldn't use numpy to process a list of five items, especially if you are unwilling to accept an array in return. If the list in question is really so short, then their running time would be …

May 23, 2012 · One of the nice (and idiomatic) features of Python is letting it do the counting for you. sum() is a built-in and you should not use names of built-ins for your own identifiers.

How to get the sum of a list of numbers with recursion? Asked 9 years, 10 months ago Modified 2 years, 5 months ago Viewed 64k times

Dec 9, 2012 · 43 Let data = [[3,7,2],[1,4,5],[9,8,7]] Let's say I want to sum the elements for the indices of each list in the list, like adding numbers in a matrix column to get a single list. I am assuming that all …

Dec 2, 2017 · How do I get the cumulative sum of this list using list comprehension: list_comp=[1,4,9,16] Here's what I tried but it prints the double of each item in the list print([x+x for x in list_comp]) I