Texas Instruments TI-86 - Manual (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 .