Texas Instruments TI-84 Plus Guide Book

Chapter 11: Lists 271
sum(, prod(
sum(, prod(sum(, prod(
sum(, prod(
sum( (summation) returns the sum of the elements in list. start and end are optional; they
specify a range of elements.
list elements can be real or complex numbers.
prod( returns the product of all elements of list. start and end elements are optional; they
specify a range of list elements.
list elements can be real or complex numbers.
Sums and Products of Numeric Sequences
Sums and Products of Numeric SequencesSums and Products of Numeric Sequences
Sums and Products of Numeric Sequences
You can combine
sum( or prod( with seq( to obtain:
To evaluate G 2
(N–1)
from N=1 to 4:
sum(list[,start,end])prod(list[,start,end])
upper
G
expression(x)
x=lower
upper
∏ expression(x)
x=lower

Texas Instruments TI-84 Plus Specifications

General

Battery type	AAA
Power source	Battery
Number of batteries supported	4
Type	Graphing
Cover	No
Form factor	Pocket
Control type	Buttons
Product color	Black
USB port	Yes
USB 2.0 ports quantity	1
Digits	- digits
Display number of lines	8 lines
Display number of characters	16
RAM capacity	0.024 MB
ROM capacity	0.480 MB
Storage media type	-