Python code to sum the square values of numbers from 1 to n

Question

I am struggling to add numbers by using python. Could you please aid me. Thank you.

You can use the addition operator `+` or the [`sum`](https://docs.python.org/3/library/functions.html#sum) function — Patrick Haugh, Feb 16 '17 at 16:43
i dont want to use the sum function. Also if i have like 300 numbers i can add them individually — SyntaxError101, Feb 16 '17 at 16:45
What have you tried? Have you familiarized yourself with basic Python syntax yet? This is an extremely elementary question that I'm sure can be resolved with a little work to learn the bare minimum elements of the language. — Nicholas Flees, Feb 16 '17 at 16:48

score 0 · Accepted Answer · answered Feb 16 '17 at 18:19

Here is how you would do it in Python 2:

n = int(raw_input("Type n:"))
total = 0
for i in range(1,n+1):
    total += i**2
print total

Here is how you would do it in Python 3:

n = int(input("Type n:"))
total = 0
for i in range(1,n+1):
    total += i**2
print(total)

This takes the numbers 1 through n and put them into variable i. For each time this happens, it takes the square of i and adds it onto total. It then prints the total.

I suggest reading a Python book. "Hello World" by Carter and Warren Sande is a fantastic one!

If you need further clarification, notify me in the comments.

Python code to sum the square values of numbers from 1 to n

1 Answers1