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2. Java program which sums numbers from 1 to 100 - Stack Overflow

   stackoverflow.com/questions/46193853

   IntStream.rangeClosed(1, 100).sum(); That seems a pretty straightforward statement to read: give me a stream of integers in the range from 1 to 100 and then sum them. Even better you don't need to declare a variable you have no real use for.

3. python - Sum of the integers from 1 to n - Stack Overflow

   stackoverflow.com/questions/43901484

   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.

4. Sum of even integers from a to b in Python - Stack Overflow

   stackoverflow.com/questions/13809159

   def sum_even_numbers(n): k = n // 2 return k * (k + 1) To sum even numbers from 1 to a specific number 𝑛 in O(1) you can use above code. since the numbers till a certain point half even and odd we take half which is even and perform the law that give us the even numbers till a point which is n*(n+1)

5. How to find the sum of all numbers between 1 and N using...

   stackoverflow.com/questions/29549836

   You can find the number of pairs by dividing n/2 and it also gives you the middle number then you just add 1 to find its pair. Let say you are getting the sum of 1-100, by applying Gauss's approach, you'd want 50 (101)=5050. 50 is the number of pairs and in the code, it is represented by n * and 101 is the addition of the middle pair (50+51) or ...

6. java - While loop numbers sum - Stack Overflow

   stackoverflow.com/questions/20043596

   I need help on how to calculate sum of the numbers that while loop prints. I have to get numbers 1 to 100 using while loop and calculate all those together. Like 1+2+3...+98+99+100. I can get numbers but can't calculate them together. Here's my code:

7. Bash command to sum a column of numbers - Stack Overflow

   stackoverflow.com/questions/3096259

   The bc solution is OK but what happens when you need to sum two columns or perhaps filter out negative numbers. With awk you can easily and sensibly add in extra logic, with the bc solution you end up with piping through yet another command (cut or grep)

8. for loop - Sum of Numbers C++ - Stack Overflow

   stackoverflow.com/questions/7463507

   2. You can try: int sum = startingNumber; for (int i=0; i < positiveInteger; i++) {. sum += i; } cout << sum; But much easier is to note that the sum 1+2+...+n = n*(n+1) / 2, so you do not need a loop at all, just use the formula n*(n+1)/2. answered Sep 18, 2011 at 18:37.

9. Python: Total sum of a list of numbers with the for loop

   stackoverflow.com/questions/23309657

   I need to program a Python function that gives me back the sum of a list of numbers using a for loop. I just know the following: sum = 0 for x in [1,2,3,4,5]: sum = sum + x print(sum)

10. python - Sum up all the integers in range () - Stack Overflow

    stackoverflow.com/questions/20455977

    13. Use generator expression and sum function here: res = sum(x for x in range(100, 2001) if x % 3 == 0) It's pretty self-explanatory code: you're summing all the numbers from 100 to 2000, inclusive, which are divisible by three. edited Dec 8, 2013 at 17:00. answered Dec 8, 2013 at 16:51.

11. Calculate the sum of all numbers from 1 to a given number using...

    stackoverflow.com/questions/70693514

    Before for loop, you have to create the variable sum, which adds and save the partial sum in every iteration: sum=0 #initialize sum for i in range(1, number+1): sum=sum+i # you have to add current i to the partial sum #you can use the contract form sum+=i for the line above print(sum)