Texas Instruments TI-86 - Page 294

282
Chapter 20: A to Z Function and Instruction Reference
20ATOZ.DOC TI-86, Chap 20, US English Bob Fedorisko Revised: 02/13/01 2:42 PM Printed: 02/13/01 3:05 PM Page 282 of 118
#ofElements¶dim vectorName
If
vectorName
does not exist, creates a new vector with
the specified #
ofElements
and fills it with zeros.
If
vectorName
exists, redimensions that vector to the
specified #
ofElements
. Existing elements within the
new dimension are not changed; elements outside the
new dimension are deleted. If additional elements are
created, they are filled with zeros.
DelVar(VEC)
b
Done
4
¶
dim VEC
b
4
VEC
b
[0 0 0 0]
[1,2,3,4]
¶
VEC
b
[1 2 3 4]
2
¶
dim VEC
b
2
VEC
b
[1 2]
3
¶
dim VEC
b
3
VEC
b
[1 2 0]
dimL
LIST OPS menu
dimL list
Returns the length (number of elements) of a real or
complex
list
.
dimL {2,7,
L
8,0}
b
4
1/dimL {2,7,
L
8,0}
b
.25
¶
dimL
X
, then LIST OPS
menu
#ofElements¶dimL listName
If
listName
does not exist, creates a new list with the
specified #
ofElements
and fills it with zeros.
If
listName
exists, redimensions that list to the
specified #
ofElements
. Existing elements within the
new dimension are not changed; elements outside the
new dimension are deleted. If additional elements are
created, they are filled with zeros.
3
¶
dimL NEWLIST
b
3
NEWLIST
b
{0 0 0}
{2,7,
L
8,1}
¶
L1
b
{2 7
L
8 1}
5
¶
dimL L1
b
5
L1
b
{2 7
L
8 1 0}
2
¶
dimL L1
b
2
L1
b
{2 7}
DirFld
† graph format screen
(scroll down to second
screen)
DirFld
In
DifEq
graphing mode, turns on direction fields. To
turn off direction and slope fields, use
FldOff
.