Operation Manual

Chapter 11: Lists 176

cumSum(

list)

@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(

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 CBL2™ or CBR2™ 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.

Before Using Select(

Before using Select(, follow these steps.

1. Create two list names and enter the data.

2. Turn on a stat plot, select " (scatter plot) or Ó (xyLine), and enter the two list names for

Xlist: and

Ylist: (Chapter 12).