FORMULA HELP

[Heidi Stubner <stubner@xxxxxxxxxxxxx>]

This is my 3rd try over the past 2 days at posting this message.  I
apologize if this is a duplication.

Formula Question:

I'm trying to find securities have a RSI which was overbought 10 days ago
and now has fallen.  I'm searching the manual to determine how to
specify "DAYS AGO" but I am unable.  I think it pertains
to DATA ARRAY, but I just can't get it to work.

I plan on combining this with a Parabolic SAR (the formula I have
solved).

Thanks .