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One of the many things I don't understand about programming is why
PREV should require slowly recalculating all the previous values of
whatever. Why not just scan the formula first, note what the PREV
statement refers to, set up an extra array, and save the values to it
as they are calculated? Then when you get to the PREV statement all
you'd have to do is look up the necessary value in the array. With the
advantage of not knowing what I'm talking about, it seems that this
would have to be a lot faster than the endless-recalculation method,
and maybe even fast enough not to degrade AB's performance to an
objectionable degree.
Just a thought.
Owen Davies
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