# Talk:Arithmetic Sequence

### Abram 7/10

"In fact, so long as the absolute difference between the two values to be square rooted is the same integer, the property will hold."

• What square rooting?
• also what absolute difference are you talking about?
• Actually, this sentence and the following equation could probably just be replaced by "the nth term of a sequence is the average of the (n-t)th term and the (n+t)th term".

### Anna 7/6

In your last section, I'd take out the word painless... maybe replace it with something else.

Also, in that section, you say "using the fact that a_1" without stating any fact. Your next step is unclear without that statement.

Rather than terms "increasing" don't you want terms "changing"? For e.g. 2, for example.

-Gene 6/28

### Anna 6/26

Your example doesn't make sense to me. Between 25 and 125, you add 100, but then between 125 and 625 is 500... and it's a geometric series, and not the series you gave as series 1. You also need to fix your formula. It should be $a_n=a_0+d*n$.

Once you've made the basic math revisions to the page, we can work on style changes.