SIGMA summation (RESOLVED)
02-20-2020, 09:52 PM (This post was last modified: 02-24-2020 09:10 AM by StephanP.)
Post: #1
 StephanP Junior Member Posts: 36 Joined: Apr 2015
SIGMA summation (RESOLVED)
In CAS mode, one can do a summations like sum(5*n+3,n,0,25) = 1703
But in the official Dutch Exam mode, CAS is disabled.

The TI-84 Plus CE-T has a very nice summation SIGMA( function that remains available in Exam mode.

I can't seem to find if there is a non-CAS equivalent to the sum() function?
02-20-2020, 10:48 PM
Post: #2
 swagner53 Junior Member Posts: 18 Joined: Jun 2018
RE: SIGMA summation
There is a summation sign in the template menu (to the right of the toolbox) that works in the HOME screen (third entry in bottom row). Just remember to use a predefined variable (such as an uppercase letter).
02-20-2020, 10:55 PM
Post: #3
 Tonig00 Junior Member Posts: 41 Joined: May 2016
RE: SIGMA summation
Hello
With 2 functions:
ΣLIST(MAKELIST(5*X+3,0,25))

Sure there are other possibilities.
02-20-2020, 11:16 PM
Post: #4
 Carlos295pz Senior Member Posts: 364 Joined: Sep 2015
RE: SIGMA summation
You find it in the mathematical templates
Σ(5*X+3,X,0,25)

Viga C | TD | FB
02-21-2020, 03:52 AM
Post: #5
 StephanP Junior Member Posts: 36 Joined: Apr 2015
RE: SIGMA summation
Ha, the templates!
I'm not quite used to that button.
Magic.

Thanks, fellows.
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