# Thread: [SOLVED] Performing Series Functions on a Ti-84+

1. ## [SOLVED] Performing Series Functions on a Ti-84+

I was wondering if the Ti-84+ is capable of performing basic summing problems, and if so, how to enter the problem.
For example how would i enter:
$\displaystyle \sum_{n=0}^{12} 5(3^{n-1})$

2. Originally Posted by Dotdash13
I was wondering if the Ti-84+ is capable of performing basic summing problems, and if so, how to enter the problem.
For example how would i enter:
$\displaystyle \sum_{n=0}^{12} 5(3^{n-1})$
sum(seq(5*3^(N-1),N,0,12,1))

sum( := List Math 5:

seq( := List Ops 5:

List := 2nd Stat

3. Thank you very much, but do you know any of the menus that the sum and seq functions are under? I can find them in the catalog, but it's a pain. Also, what button has a comma? I can find that one too under the catalog.

4. Originally Posted by Dotdash13
Thank you very much, but do you know any of the menus that the sum and seq functions are under? I can find them in the catalog, but it's a pain. Also, what button has a comma? I can find that one too under the catalog.
Since I know that the menu structure of a TI84 is more than chaotic I've mentioned in my previous post where you can find the menu items to build the necessary formula:

sum( := List Math 5:

seq( := List Ops 5:

List := 2nd Stat
sum( := List Math 5: means: You'll find the sum( command under LIST (=2ND STAT) --> MATH --> 5:

5. Ok, thanks for the clarification.