Ross Litscher wrote:

> bleh! sometimes you just need to post here to get a fresh perspective on
> mess-ups and clear your head.
> 
In which case, it definitely worked (but I'll try to avoid this method 
in the future.)

After getting the rather-more-politely-worded advice to RTFM, which also 
means
re-RTFM, I did re-RTFM, and found:

(In section 6.5.4.2 Functions in Isosurface)

"By default a function takes three parameters (x,y,z) and you do not 
have to explicitly specify the
parameter names when declaring it.  When using the identifier, the 
parameters must be specified."

which exactly answered my question, and I could swear was not there the 
first 50 or so times
I read the manual.

Someplace I learned the advice, which I must remember to follow:

(and I'm probably messing up the syntax and/or the logic, but I'm not 
going to ask about it!)

#while ((hell_frozen_over = 0) & (understanding < 1) )
read(manual)
evaluate(understanding)
evaluate(hell_frozen_over)
#end

which, I know, might include an extra evaluation of the status of hell, 
but that's usually something
good to know for other purposes, anyway.

Dave

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