[Tutor] for Loops with Squared

[Mary Knauth]

Hello!

I am just diving into Python, and I’m having difficulty with for Loops right now.

The exercise I am working on is:
We will provide you with a value N. You should calculate the sum of each value of N squared from 0 up to and including N.

In mathematical notation, this is written as  ∑Ni=0i2
∑
i
=
0
N
i
2
 

So if we passed in 3, you would output  02+12+22+32=14 

My script is:
# Get N from the command line
import sys
N= int(sys.argv[1])



square = 0 

for i in range(0, N+1):  
  square = (i * i) + square 
  print(square)


I’m pretty sure my mistake is in line 10, but I’m missing what I’m doing incorrectly.

Thanks!

Warm Regards,

Mary



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