Hi


"Robert" wrote in message
...
Steve, taking your cue, have fully achieved my objective i.e. a single
formula.
Thank you.
Arvi, 1st part, I follow your explanation. 2nd part - seems to be similar
to
what I already had. It is not a single formula.

It is a single formula! Composed of several nested functions (i.e. a
function inside function, up to 3 nesting levels).

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Arvi Laanemets