Texas Instruments PLUS TI-89 - Manual (Page 446)

Appendix A: Functions and Instructions 429
8992APPA.DOC TI-89 / TI-92 Plus: Appendix A (US English) Susan Gullord Revised: 02/23/01 1:48 PM Printed: 02/23/01 2:21 PM Page 429 of 132
Custom 2 ¾ key
Custom
block
EndCustm
Sets up a toolbar that is activated when you
press 2 ¾. It is very similar to the
ToolBar instruction except that Title and Item
statements cannot have labels.
block can be either a single statement or a
series of statements separated with the “:”
character.
Note: 2 ¾ acts as a toggle. The first
instance invokes the menu, and the second
instance removes the menu. The menu is
removed also when you change applications.
Program listing:
:Test()
:Prgm
:Custom
:Title
"Lists"
:Item "List1"
:Item "Scores"
:Item "L3"
:Title "Fractions"
:Item "f(x)"
:Item "h(x)"
:Title "Graph"
:EndCustm
:EndPrgm
Cycle CATALOG
Cycle
Transfers program control immediately to the
next iteration of the current loop (
For , While ,
or Loop ).
Cycle is not allowed outside the three looping
structures ( For , While , or Loop ).
Program listing:
:¦ Sum the integers from 1 to
100 skipping 50.
:0! temp
:For i,1,100,1
:If i=50
:Cycle
:temp+i! temp
:EndFor
:Disp temp
Contents of temp after execution: 5000
CyclePic CATALOG
CyclePic picNameString , n [, [wait] , [cycles],
[direction]]
Displays all the PIC variables specified and at
the specified interval. The user has optional
control over the time between pictures, the
number of times to cycle through the
pictures, and the direction to go, circular or
forward and backwards.
direction is 1 for circular or ë 1 for forward
and backwards. Default = 1.
1. Save three pics named pic1 , pic2 , and
pic3 .
2. Enter: CyclePic " pic " ,3,.5,4,ë1
3. The three pictures ( 3) will be
displayed automatically—one-half
second (
.5) between pictures, for
four cycles ( 4), and forward and
backwards (ë 1).
4 Cylind MATH/Matrix/Vector ops menu
vector 4 Cylind
Displays the row or column vector in
cylindrical form [r
∠ q, z].
vector must have exactly three elements. It
can be either a row or a column.
[2,2,3] 4Cylind ¸
[ 2ø ‡2 
p
4
3 ]