Texas Instruments TI-Nspire CX CAS TINSPIRE-CX-CAS 产品宣传页
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TINSPIRE-CX-CAS
524 Getting Started with the Program Editor
Local i
À
For i,0,5,1
Disp i
EndFor
Disp i
Disp i
EndFor
Disp i
À
Declares variable
i
as local.
Note:
When possible, declare as local any variable that is used only within the
program and does not need to be available after the program stops.
What Causes an Undefined Variable Error Message?
An
Undefined
variable error message is displayed when you evaluate a user-
defined function or run a user-defined program that references a local variable
that is not initialized (assigned a value).
that is not initialized (assigned a value).
For example:
Define fact(n)=Func
Local m
Local m
À
While n>1
n¦m&m: n–1&n
EndWhile
Return m
n¦m&m: n–1&n
EndWhile
Return m
EndFunc
À
Local variable
m
is not assigned an initial value.
Initialize Local Variables
All local variables must be assigned an initial value before they are referenced.
Define fact(n)=Func
Local m: 1&m
Local m: 1&m
À
While n>1
n¦m&m: n–1&n
EndWhile
Return m
EndFunc
n¦m&m: n–1&n
EndWhile
Return m
EndFunc
À
1 is stored as the initial value for
m
.