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神经网络昆斯林的新闻组分类2006

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From: [e-mail] (Pat)
Newsgroups: sci.misc,sci.math,sci.space
Subject: Re: Sunrise/ sunset times
Date: 25 Apr 1993 11:52:06 -0400
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In article <1r6f3a$[e-mail]> [e-mail] (Rouben Rostamian) writes:
>how the length of the daylight varies with the time of the year.
>Experiment with various choices of latitudes and tilt angles.
>Compare the behavior of the function at locations above and below
>the arctic circle.



If you want to have some fun.

Plug the basic formulas  into Lotus.

Use the spreadsheet auto re-calc,  and graphing functions
to produce  bar graphs  based on latitude,  tilt  and hours of day light avg.


pat