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

• Mar 15th 2010, 05:18 PM
Dotdash13
[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:
$\sum_{n=0}^{12} 5(3^{n-1})$
• Mar 16th 2010, 08:58 AM
earboth
Quote:

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:
$\sum_{n=0}^{12} 5(3^{n-1})$

sum(seq(5*3^(N-1),N,0,12,1))

sum( := List Math 5:

seq( := List Ops 5:

List := 2nd Stat
• Mar 16th 2010, 09:09 PM
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.
• Mar 16th 2010, 10:36 PM
earboth
Quote:

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:

Quote:

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:
• Mar 17th 2010, 07:09 PM
Dotdash13
Ok, thanks for the clarification.