Hi Mike(Mont),
If you re-read what I have written, you will find there are no personal attacks against anyone. I am also interested to learn whether this device works, and what is "forward gauss". Since there is little information for either of these questions, the only clues we have are to research the source and discover the facts around the devices and the people who developed them. The registries of the State of Florida and US Patent Office contain records, not attacks. These records are dependable for establishing the dates that certain events occurred, such as registering a trademark, patent, or corporation. They do not rely on hearsay, which is subject to making an error from lapse of memory, or falsification. When a person publishes any document where they are claiming a trademark, we expect they own that trademark. Thus, we would expect William Dunning owns the trademarks he claims to have registered.
However, I cannot find any sign that he owns these trademarks at all. Nowhere in the Florida, or the US government patent office. With no information on where this "trademarked" technology came from, it seems reasonable to suspect maybe Bill Dunning made it up. According to your statement, this suspicion is correct:
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Originally Posted by Mike(Mont)
He developed the Forward Gauss technology before there was MFD.
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It is not a personal attack to say that it appears Bill Dunning made up "forward gauss". It is simply a statement that this appears to be the source of where "forward gauss" came from, and it helps to answer the question that three of us have been wondering in our above posts. And this may be a false appearance if it is discovered some other person originated the term and technology. "Forward Gauss" very definitely is not a registered trademark in the US Patent office or the State of Florida. This is a simple matter of historical fact.
The math formulas you found in your search are not related to any work done by Bill Dunning. The math formulas relate to the Gauss-Siedel method of smoothing when using multigrid applications to solve linear systems associated with elliptical partial differential equations. In simple terms, it is a mathematical method to solve a calculus equation. It has no relation to metal detection or long range locating. This leads me to believe that Bill Dunning is the source of the concept and terminology of "forward gauss" as it relates to long range locating.