Doh! Sorry to have led so many on a wild goose chase (thanks for all the replies though). But I was so wrapped up in solving the problem of the range limits not being part of the set that I left out a HUGE set of the problem. So, consider that a warmup.

Given the original @F(values are unique, and are probably sorted) return the indices of @F whose values fall within the supplied range.

UPDATE: Although I suppose all that would be required then is to use one of these search techniques (which?) and reverse map the values of @F to the indices. Does this added step give one of the techniques an advatage over the others?

--
I'm not belgian but I play one on TV.

In reply to UPDATE: mapping lists by belg4mit
in thread mapping lists by belg4mit

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