Sum(, Prod(; Sums And Products Of Numeric Sequences - Texas Instruments TI-83 Manual Book

sum(, prod(

(summation) returns the sum of the elements in
sum(
optional; they specify a range of elements.
complex numbers.
returns the product of all elements of
prod(
optional; they specify a range of list elements.
or complex numbers.
[
sum(list ,start,end

Sums and Products of Numeric Sequences

You can combine
upper
G
expression(x)
x=lower
TI-83 Plus Lists
]
) prod(list
or
sum( prod(
upper
expression(x)
x=lower
list
list
[ ]
,start,end )
with to obtain:
seq(
.
list start
elements can be real or
. and elements are
start end
elements can be real
list
and are
end
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