- #1

- 782

- 1

How do you go from [tex]\sum_{n = 1}^n i^2[/tex] to [tex]\frac{n(n + 1)(2n + 1)}{6}[/tex]?

You are using an out of date browser. It may not display this or other websites correctly.

You should upgrade or use an alternative browser.

You should upgrade or use an alternative browser.

- Thread starter cscott
- Start date

- #1

- 782

- 1

How do you go from [tex]\sum_{n = 1}^n i^2[/tex] to [tex]\frac{n(n + 1)(2n + 1)}{6}[/tex]?

- #2

arildno

Science Advisor

Homework Helper

Gold Member

Dearly Missed

- 9,970

- 134

Prove the formula by induction.

- #3

- 307

- 1

Edit: Unless I'm missing something

- #4

arildno

Science Advisor

Homework Helper

Gold Member

Dearly Missed

- 9,970

- 134

Oops, the index should be i, not n as you've written.

- #5

0rthodontist

Science Advisor

- 1,230

- 0

https://www.physicsforums.com/showthread.php?t=108928

- #6

- 782

- 1

Thanks for the info.

My mistake with the index.

My mistake with the index.

Share: