Texas Instruments TI-83 Manual Book page 306

seq(expression,variable,begin,end
cumSum(
(cumulative sum) returns the cumulative sums of the elements
cumSum(
in , starting with the first element.
list
numbers.
cumSum(list)
@List(
returns a list containing the differences between consecutive
@List(
elements in
list
element, subtracts the second element from the third, and so on. The list
of differences is always one element shorter than the original
elements can be a real or complex numbers.
@List(list)
TI-83 Plus Lists
. subtracts the first element in
@List
[ ]
,increment )
elements can be real or complex
list
from the second
list
.
list list
303