>>The message #
1052327 does not convert to radians.
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>I see what you're referring to. But there I noted degrees to radian:)
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>>I'm saying the calculations are returning 20 feet, but the other house is approximately 100 feet away.
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>>I'm worried about distances of a meter and less.
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>>Thanks
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>And I say calculations are correct given those lat/lon. Try getting lat/lon with differential GPS then you'd be accurate to millimeter. My error was due to nondifferential GPS (simply connected one handheld garmin to a notebook).
Just to clarify. I appreciate your input on this topic. I've requested on the wikipedia page that someone provide coordinates that prove one formula is better than another.