Texas Instruments Voyage 200, User Manual

Page: 852 / 1008

854 Appendix A: Functions and Instructions
PopUp
CATALOG
PopUp
itemList
,
var
Displays a pop-up menu containing the character
strings from
itemList , waits for you to select an
item, and stores the number of your selection in
var .
The elements of
itemList
must be character strings:
{
item1String
,
item2String
,
item3String , ...}
If
var
already exists and has a valid item number,
that item is displayed as the default choice.
itemList must contain at least one choice.
PopUp
{"1990","1991","1992"},var1
¸
PowerReg
MATH/Statistics/Regressions menu
PowerReg
list1
,
list2
[
, [
list3
] [ ,
list4
,
list5
]
]
Calculates the power regression and updates all
the system statistics variables.
All the lists must have equal dimensions except
for
list5
.
list1 represents xlist.
list2 represents ylist.
list3 represents frequency.
list4 represents category codes.
list5 represents category include list.
Note: list1 through list4 must be a variable name
or c1–c99 (columns in the last data variable
shown in the Data/Matrix Editor).
list5 does not
have to be a variable name and cannot be c1–
c99.
In function graphing mode:
{1,2,3,4,5,6,7}
!
L1
¸
{1 2 3
...
}
{1,2,3,4,3,4,6}
!
L2
¸
{1 2 3
...
}
PowerReg L1,L2
¸
Done
ShowStat
¸
¸
Regeq(x)
"
y1(x)
¸
Done
NewPlot 1,1,L1,L2
¸
Done
¥ %
Prgm
CATALOG
Prgm
©©©©
EndPrgm
Required instruction that identifies the beginning
of a program. Last line of program must be
EndPrgm
.
Program segment:
:prgmname()
:Prgm
:
:EndPrgm
Product (PI)
See
Π
( ) , page 908.
product()
MATH/List menu
product(
list
[
, start
[
, end
]])
⇒
⇒ ⇒
⇒
expression
Returns the product of the elements contained in
list . Start and end are optional. They specify a
range of elements.
product({1,2,3,4})
¸
24
product({2,x,y})
¸
2
ø
x
ø
y
product({4,5,8,9},2,3)
¸
40