On 09/22/09 15:44, clipka wrote:
> Thus, the number of trailing zeros can be expressed as:
>
> floor(n/5) + floor (n/(5^2)) + floor(n/(5^3)) + ...
>
> which is a perfectly valid, non-recursive (albeit infinite) mathematical
> formula for the desired thing. (Unfortunately the floor() function

	While he didn't state it in his original phrasing, he meant closed form.


-- 
I think animal testing is a terrible idea. They get all nervous and give 
the wrong answers.

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