Sunset, sunrise, twilight calculations in LC?

[Earthednet-wp]

Richmond,
Floor of a number is the largest integer that is less than or equal to the number. For positive numbers, it would be trunc(myNumber) but for negative numbers, floor(-4.34) would have to evaluate to -5. Probably trunc(myNum-1) would almost do it, but I'm not in LC to check all cases, e.g. floor(-4.0) should be -4. 
Bill

William Prothero
http://es.earthednet.org

> On Aug 23, 2014, at 8:09 AM, Richmond <richmondmathewson at gmail.com> wrote:
> 
>> On 23/08/14 17:44, Earthednet-wp wrote:
>> I found this link. It might be easier to convert this code to LC.
>> http://williams.best.vwh.net/sunrise_sunset_algorithm.htm
>> Bill
>> 
>> William Prothero
>> http://es.earthednet.org
>> 
>> 
> 
> That looks very good indeed: but I don't understand what 'floor' means.
> 
> Richmond.
> 
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