How do you add numbers from 1 to n in python?
I'm trying to write a program to add up number from 1 to n. I've managed to get it to print the numbers several times but not add them all. It keeps on just adding two of the numbers.
My 1st attempt is:
How can I fix this problem?
asked May 10, 2017 at 19:45
I don't understand why everyone keeps making everything complex. Here is my simple solution
answered Feb 22, 2020 at 3:41
Akshat TamrakarAkshat Tamrakar
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You can do it with one line, where you create a list of integers from
answered May 10, 2017 at 19:57
That's where I use "math" to solve problems like this. There is a formula for solving this problem: n * (n+1) / 2.
The code I would write:
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answered Jun 3, 2021 at 12:42
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You need 2 different variables in your code -- a variable where you can store the sum as you iterate through the values and add them (my_sum in my code), and another variable (i in my code) to iterate over the numbers from 0 to n.
You are using the my_sum variable in your code to both store the sum and iterate through the numbers.
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answered May 10, 2017 at 20:23
This one line do the job :
answered Feb 8, 2018 at 14:04
answered Oct 24, 2018 at 13:27
The sum of numbers from 1 to n will be greater than n. For example, the sum of numbers from 1 to 5 is 15 which is obviously greater than 5. Your while loop terminates prematurely. You need to maintain a separate counter for the loop.
answered May 10, 2017 at 20:14
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Actually, I have tried a lot of that type of Programs In Jupyter Notebook you may use these:
And Also You may try this code:
And Also You may try it
answered Dec 10, 2020 at 16:41
Real programmers use recursion (and hopes for a not too big n since there is no tail call optimization in Python):
answered May 10, 2017 at 20:28
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so it will be more optimal
answered Sep 11, 2018 at 9:26
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answered Oct 24, 2018 at 12:55
THIS WHILE LOOP ACTUALLY WORKS:
answered Mar 8, 2021 at 3:20
These lines worked for me in Python
As well as these:
answered Jul 10, 2021 at 22:40
How about you try it using a "While Loop":
answered Jun 28, 2017 at 12:15
answered Apr 29, 2019 at 9:04
How do you add a number from 1 to n?
The formula of the sum of first n natural numbers is S=n(n+1)2 .
How do you add all the numbers from 1 to 10 in Python?
“print sum of all the numbers 1 to 10 in python using for loop” Code Answer's.
n = input("Enter Number to calculate sum").
n = int (n).
sum = 0..
for num in range(0, n+1, 1):.
sum = sum+num..
print("SUM of first ", n, "numbers is: ", sum ).
How do you add n numbers in Python?
See this example:.
num = int(input("Enter a number: ")).
if num < 0:.
print("Enter a positive number").
sum = 0..
# use while loop to iterate un till zero..
while(num > 0):.
sum += num..
How do you sum a range of numbers in Python?
To sum all numbers in a range: Use the range() class to get a range of numbers. Pass the range object to the sum() function. The sum() function will return the sum of the integers in the range.