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Re: [gpsd-dev] ✘CEP(50) 0.009 meters


From: Hal Murray
Subject: Re: [gpsd-dev] ✘CEP(50) 0.009 meters
Date: Mon, 25 Jul 2016 17:50:40 -0700

address@hidden said:
> 0.0000001 degree at the equator is 11.132 mm.
> At centimeter accuracy my latest code at the equator is off by almost 40% in
> some test cases... 

>From a few messages ago:
>   121.31405412
> - 121.31405411
> --------------
>    0.00000001

You are likely to have serious roundoff in the decimal printing.


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