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Wally
 
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DSK wrote:

Now that I have my referance library and a spreadsheet instead of a
pocket calculator and faulty memory, I'll try again. It's a more
interesting problem than I thought it'd be....


Yup, the south pole behaves differently - gonna to play with that later.


No, it increases. And the change isn't linear.


Yes, I realized this thinking about it on the drive home. So what is
it proportional to, the arcsine?


The function I used is: cos(lat) x 60

Since the cosine produces the same curve as a sine, but 90deg out of phase
[it starts high instead of low - cos(0)=1, sin(0)=0], for the first 0-90deg,
we're seeing the second half of the bendy top of the curve, followed by the
first half of the straightish negative-going part of the curve. The most
linear part starts at about 50-60 degrees and continues to the pole.


--
Wally
www.artbywally.com
www.wally.myby.co.uk


 
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