I have had this problem to. I think the formula input and output name can't
be more then 2 or 3 cha. long.
Andrew Berkley wrote in message <7ps0rm$5hs@student1.physics.umd.edu>...
>In article <7prv5n$501@student1.physics.umd.edu>,
>Andrew Berkley 
 wrote:
>>I'm using the evaluate formula node and friends in LabVIEW 5.1.  Problem
is
>>something doesn't work and I'm getting an error number 4 on parsing.  Is
there
>>a list of what the errors mean?  I've scanned through the code but it's
>>hideous.
>
>I changed all my variables to single letters and now it works.  Is this
>documented somewhere?  My formula was just
>outa=ina;
>outb=inb;
>outc=inc;
>outd=ind;
>oute=ine;
>this doesn't work (gives error 4).  Normal formula nodes can have multiple
>
character long variables.  This does work:
>a=f;
>b=g;
>c=h;
>d=i;
>e=j;
>
>Andrew