how to sum variables in python

Sum and Subtract Two Variable Integer Using Python, Computational ...

January 21, 2023

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Python's Variable Length Parameters - How to sum variable ...

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Sum Function in Python🐍 #shorts - YouTube

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Quora

quora.com › How-do-we-find-the-sum-of-two-variables-in-the-Python-programming-language

How do we find the sum of two variables in the Python programming language? - Quora

Answer (1 of 2): To find the sum of two variables in Python, you can use the [code ]+[/code] operator. For example: [code]>>> x = 3 >>> y = 4 >>> z = x + y >>> print(z) 7 [/code]You can also use the [code ]sum()[/code] function from the [code ]math[/code] module: [code]Copy code>>> import math ...

stackoverflow.com › questions › 53492848 › finding-sum-of-variables-in-python

Finding Sum of Variables in Python - Stack Overflow

w3schools.com › python › ref_func_sum.asp

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Four things:

Not sure why you storing the input as float, int should suffice.
If you give a negative input, it will enter the while loop. However, in the while loop, you are not actually assigning the new input to user_input. Fix this by adding user_input =
The while loop guarantees user_input is >= 0, so if user_input > 0: is unnecessary.
Probably the most important, to calculate the sum of digits, you need to repeatedly divide and sum, not just do it once. So, add a while loop.

Final code:

user_input = int(input("Please Enter Your Number: "))
s = 0

while user_input < 0:
    user_input = int(input("Please Enter Another Number: "))

while user_input:
    s += user_input % 10
    user_input //= 10

print("You've entered a positive number! The sum of the digits is: ", s)

2 of 3

The if statement is generally used to decide if something should be done once.

If you want to keep going until user_input becomes zero, you'll need a while.

Also, I'm not entirely certain why you're storing the number as a float, especially when you make that from an int anyway. It may as well just be an int.

Additionally, you're loop to re-enter the value if it was negative doesn't actually assign the new value to the variable.

And you probably also want to outdent the print statement lest it be done on every iteration of the loop you're about to add.

Of course, some may suggest a more Pythonic way of summing the digits of a positive number is a simple:

sum([int(ch) for ch in str(x)])

That works just as well, without having to worry about explicit loops.

W3Schools

Python sum() Function

The sum() function returns a number, the sum of all items in an iterable. ... Coding fundamentals as bite-sized lessons and challenges. ... If you want to use W3Schools services as an educational institution, team or enterprise, send us an e-mail: ...

Team Treehouse

teamtreehouse.com › community › how-would-i-make-a-variable-that-has-the-sum-of-two-other-variables-in-python

How would I make a variable that has the sum of two other variables in python? (Example) | Treehouse Community

Hello MARIA Quadr At first you got it wrong by assigning an integer(numbers ie: total = 14 + 2) to the variable total Delete total = 14 + 2 finally change your print method to print(total) so you code should look like this: current_count = 14 upcoming_releases = 2 total = current_count + upcoming_releases del planned print(total)

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2 of 2

You've got the right line in there, but you also have some extra stuff that isn't needed, which is probably messing up the answer that the challenge is looking for. Here's the code that will pass the challenge: python current_count = 14 planned = 5 upcoming_releases = 2 del planned total = current_count + upcoming_releases Notice how total is created after planned is deleted. It's always good to make sure that in code challenges, your new code goes below whatever code is already written (unless the challenge tells you otherwise)! But you had it right, you can add two variables together with the + symbol. Also, a side note, when you print something, make sure whatever you want printed is in parentheses directly after print, otherwise python won't understand what you're telling it to do. You don't need to print anything here, so you can delete that code. Example of proper syntax for printing: ```python printing a variable alpha = 'ABCDEF' print(alpha) printing a string print('ABCDEF') ```

Python Guides

pythonguides.com › add-two-variables-in-python

How To Add Two Variables In Python?

November 24, 2025 - The sum() function in Python is used to sum up the elements of an iterable (e.g., list, tuple). It can also be used to add two variables by passing them as elements of a list or tuple.

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Google Bing Mojeek

stackoverflow.com › questions › 48062227 › adding-multiple-variables-to-get-the-sum

python - Adding multiple variables to get the sum? - Stack Overflow

thenewstack.io › home › what is python’s sum() function and how do you use it?

1 of 1

Ilja Everilä comment is correct. Assuming you split the text properly (i.e., the result of the split is a string of numbers) then you can cast the string into either an int or float to add them together. Below is a sample showing some strings being cast into numbers and then added together.

#Assuming the result of the split is a string of numbers

# If you expect integer scores
robux = '1'  
robux2 = '2'

total = int(robux) + int(robux2)
print(total) # prints -> 3


# If you expect float scores
robux = '1.1'
robux2 = '2.2'

total = float(robux) + float(robux2)
print(total) #prints -> 3.3

Before casting you should verify the that you split the text properly by printing the variables: print(robux) and print(robux2). Lastly, if you are planning on adding more variable to this code then you should also follow Ilja Everilä advice about using a list structure. Lists will let you do so much more with less code.

The New Stack

What Is Python's sum() Function and How Do You Use It? - The New Stack

September 5, 2024 - And given that adding several numbers together is a widely used step in computations, it’s pretty handy that Python can do this. You could even use a for loop to sum a string of numbers together like this: a = [3, 5, 7, 10] total = 0 for number in a: total += number print(total) The above would output the same value as the two-line code above it. In the above code, total is initialized to 0, and then the variable acts as an accumulator as it iterates through the loop.

University of Vermont

uvm.edu › ~cbcafier › cs1210 › book › 11_loops › loops_and_summation.html

Math and Python: loops and summation – Clayton Cafiero

Here’s a simple example. t = ... values, t. Since the elements of t are all numeric, we can calculate their sum. First, we create a variable to hold the result of the sum....

GeeksforGeeks

geeksforgeeks.org › python › sum-function-python

sum() function in Python - GeeksforGeeks

November 27, 2025 - The sum() function in Python is used to add up numbers from any iterable such as a list, tuple, set, or dictionary values.

Codecademy

codecademy.com › forum_questions › 53bb48ee7c82ca502900014b

Can someone explain how to use the sum() function for more than one variable? | Codecademy

use + for this sum is used to sum up all items of a collection such as a list in this case you don’t have a list of numbers, you have 3 variables, it would be silly to put them in a list just to be able to use sum when + is readily available

stackoverflow.com › questions › 21045735 › how-do-you-make-two-variables-add-together-in-python

How do you make two variables add together in Python? - Stack Overflow

reddit.com › r/learnpython › writing code for summation formula with given variables

1 of 1

By default, input returns the user entered data as string. So, when you use + operator on two strings, it concatenates them. You need to explicitly convert them to int like this

variable1 = int(input())
...
variable2 = int(input())

r/learnpython on Reddit: Writing Code for Summation Formula with Given Variables

September 8, 2023 -

I'm only in my first week of my python class. How do I write code to calculate the sum of a sequence (s) with initial value (a), amount added at each step (d) and number of terms (n). So if a=1, d=2 and n=5, calculate and report the sum of 1+3+5+7+9. For the summation formula: S=N/2(2A + (N-1) * D)

A = 1

print("Enter the Value of n: ")

n = int(input())

A = 1

sum = 0

#This is how far I've gotten on PyCharm with working code and I cannot figure it out for the life of me

Using the formula it is pretty straight forward. First ask 3x for a user input. You don't have to print("Enter the Value of n:") before asking for input. Instead just use n = int(input("Enter the value of n: ")). When you have all 3 variables you can get the result by using the formula but you need to keep in mind that python does not understand 3n or 3(x+y) as multiplication. You explicitily need to use "*". So in your case: result = n / 2 * (2 * a + (n - 1) * d) Hope that helps :)

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2 of 4

Summation is a actually just a kind of for loop in Python (which can be written as a while loop) n=0 for value in range(i) n += value print(n) We can add step in the range() function range(start, end, step) The same thing can be done for multiplication or any other thing you want.

Programiz

programiz.com › python-programming › methods › built-in › sum

Python sum()

numbers_sum = sum(numbers) print(numbers_sum) # start = 10 ... If you need to add floating-point numbers with exact precision, then you should use math.fsum(iterable) instead.

Toppr

toppr.com › guides › python-guide › references › methods-and-functions › methods › sum › built-in › python-sum

Python sum(): Sum() Parameters, Return Value from sum()

July 30, 2021 - The sum () function is used to add the numerical values, whereas the join () function concatenates the items of the iterables. These items are in the form of strings or characters. ... The sum () function in Python is available in the function directory that provides the sum of all the numerical ...

Python.org

discuss.python.org › python help

Trying to compute sum of list variables over a certain number - Python Help - Discussions on Python.org

May 1, 2024 - I’m on Coursera trying to do this one practice problem and it’s blocking my progress. I’ve analyzed all my past training materials to see if I should know the solution already. no luck! I don’t really want anyone to spit out an instant answer at me, but I don’t know how to beat this.

Use of Sum() In Python - Sum() Function Explained For Summing Values - YouTube

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05:27

Use of Sum Function In Python - Summing ValuesI did my best to explain use of sum() function in python in easy steps for beginners :)#learnpython #pythonforb...

Published: December 6, 2024

stackoverflow.com › questions › 16313986 › how-to-add-variables-in-python

How to add variables in Python? - Stack Overflow

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str values can be added to each other much like numbers. The + operator you use works fine, but concatenates values for strings. The result of raw_input is a string (str), so that's why you'd see '555' in stead of 15. To sum numbers, use int() to coerce the values to numbers before adding them up:

try:
    a = int(raw_input('gimme a number'))
except ValueError as e
    print 'that was not a number, son'

2 of 5

Make sure that your raw_input actually Is an int():

shape = raw_input("Is the plot a (q) quadrilateral or (t) triangle?")
if shape.lower() == "q":
    try:
        a = raw_input("What is the length in feet of side 'a'?")
        b = raw_input("What is the length in feet of side 'b'?")
        c = raw_input("What is the length in feet of side 'c'?")
        d = raw_input("What is the length in feet of side 'd'?")
        perimeter = int(a) + int(b) + int(c) + int(d)
    except ErrorValue as e  
        print "Please make sure you enter numbers only."

elif shape.lower() == "t":
    try:
        a = raw_input("What is the length in feet of side 'a'?")
        b = raw_input("What is the length in feet of side 'b'?")
        c = raw_input("What is the length in feet of side '
        perimeter = int(a) + int(b) + int(c)
    except ErrorValue as e  
        print "Please make sure you enter numbers only."
else:
    print "Please enter 'q' for quadrilateral or 't' for triangle."