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Programming 595
Note: If a program has local variables, a graphed function cannot access them. For
example:
may display an error or an unexpected result (if
a is an existing variable in the current
folder).
Circular Definition Errors
Circular Definition ErrorsCircular Definition Errors
Circular Definition Errors
When evaluating a user-defined function or running a program, you can specify an
argument that includes the same variable that was used to define the function or create
the program. However, to avoid Circular definition errors, you must assign a value for
x or i variables that are used in evaluating the function or running the program.
For example:
Ê
Causes a Circular definition error message if x or i does not have a value. The error
does not occur if x or i has already been assigned a value.
Local a
5!a
Graph aùcos(x)
Ê
Ê
x+1!x
– or –
For i,i,10,1
Disp i
EndFor