Texas Instruments TI-83 PLUS - Manual (Page 303)

TI-83 Plus Lists 300
With one list, SortA( and SortD( sort the elements of listname and update
the list in memory.
SortA( listname ) SortD( listname )
With two or more lists, SortA( and SortD( sort keylistname , and then sort
each dependlist by placing its elements in the same order as the
corresponding elements in keylistname . All lists must have the same
dimension.
SortA( keylistname , dependlist1 [ , dependlist2 , ... , dependlist n ] )
SortD( keylistname , dependlist1 [ , dependlist2 , ... , dependlist n ] )
Note: In the example, 5 is the first element in L 4 , and 1 is the first element in
L 5 . After SortA(L 4 ,L 5 ), 5 becomes the second element of L 4 , and likewise, 1
becomes the second element of L 5 .
Note: SortA( and SortD( are the same as SortA( and SortD( on the STAT EDIT
menu (Chapter 12).