Texas Instruments TI-84 PLUS Guidebook - Page 178
Select, Before Using Select, Xlist, ZoomStat
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@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 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. 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). 3. Use ZoomStat to plot the data (Chapter 3). MathPrint™ Chapter 11: Lists 171