Texas Instruments TI-84 PLUS SILV Guidebook - Page 176

Using dim to Find List Dimensions, Using dim to Create a List, SortA, L5, STAT EDIT

Page 176 highlights

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 L4, and 1 is the first element in L5. After SortA(L4,L5), 5 becomes the second element of L4, and likewise, 1 becomes the second element of L5. • SortA( and SortD( are the same as SortA( and SortD( on the STAT EDIT menu (Chapter 12). • You cannot sort a locked list. Using dim( to Find List Dimensions dim( (dimension) returns the length (number of elements) of list. dim(list) Using dim( to Create a List You can use dim( with ¿ to create a new listname with dimension length from 1 to 999. The elements are zeros. length!dim(listname) Using dim( to Redimension a List You can use dim with ¿ to redimension an existing listname to dimension length from 1 to 999. • The elements in the old listname that are within the new dimension are not changed. • Extra list elements are filled by 0. • Elements in the old list that are outside the new dimension are deleted. Chapter 11: Lists 169

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Chapter 11: Lists
169
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
L4
, and 1 is the first element in
L5
. After
SortA(L4,L5)
, 5
becomes the second element of
L4
, and likewise, 1 becomes the second element of
L5
.
SortA(
and
SortD(
are the same as
SortA(
and
SortD(
on the
STAT EDIT
menu (Chapter 12).
You cannot sort a locked list.
Using dim( to Find List Dimensions
dim(
(dimension) returns the length (number of elements) of
list
.
dim(
list
)
Using dim( to Create a List
You can use
dim(
with
¿
to create a new
listname
with dimension
length
from 1 to 999. The
elements are zeros.
length
!
dim(
listname
)
Using dim( to Redimension a List
You can use
dim
with
¿
to redimension an existing
listname
to dimension
length
from 1 to 999.
The elements in the old
listname
that are within the new dimension are not changed.
Extra list elements are filled by 0.
Elements in the old list that are outside the new dimension are deleted.