11-12 Lists
8311LIST.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 1:21 PM Printed: 02/19/01 1:37 PM
Page 12 of 18
seq( (sequence) returns a list in which each element is the
result of the evaluation of expression with regard to
variable for the values ranging from begin to end at steps
of increment. variable need not be defined in memory.
increment can be negative; the default value for increment
is 1. seq( is not valid within expression.
seq(expression,variable,begin,end[,increment])
cumSum( (cumulative sum) returns the cumulative sums of
the elements in list, starting with the first element. list
elements can be real or complex numbers.
cumSum(list)
@List( returns a list containing the differences between
consecutive elements in list. @List subtracts the first
element in list from the second element, subtracts the
second element from the third, and so on. The list of
differences is always one element shorter than the original
list. list elements can be a real or complex numbers.
@List(list)
Select( selects one or more specific data points from a
scatter plot or xyLine plot (only), and then stores the
selected data points to two new lists, xlistname and
ylistname. For example, you can use Select( to select and
then analyze a portion of plotted CBL 2/CBL or CBR data.
Select(xlistname,ylistname)
Note: Before you use Select(, you must have selected (turned on) a
scatter plot or xyLine plot. Also, the plot must be displayed in the
current viewing window (page 11.13).
seq(
cumSum(
@List(
Select(