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+--- Thread: SIGMA summation (RESOLVED) (/thread-14542.html)
SIGMA summation (RESOLVED) - StephanP - 02-20-2020 09:52 PM
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?
RE: SIGMA summation - swagner53 - 02-20-2020 10:48 PM
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).
RE: SIGMA summation - Tonig00 - 02-20-2020 10:55 PM
Hello
With 2 functions:
ΣLIST(MAKELIST(5*X+3,0,25))
Sure there are other possibilities.
RE: SIGMA summation - Carlos295pz - 02-20-2020 11:16 PM
You find it in the mathematical templates
Σ(5*X+3,X,0,25)
RE: SIGMA summation - StephanP - 02-21-2020 03:52 AM
Ha, the templates!
I'm not quite used to that button.
Magic.
Thanks, fellows.