CAPTAIN THOMAS HUBBARD SUMNER, 1807-1876

Robert S. Richardson

Peer Reviewed

Abstract:	If a location is determined by the intersection of three lines of position, there is a chance of only one-quarter that the true position lies inside the residual triangle. If the location is determined by the intersection of four lines of position, the chance is one-half that the true location lies inside the larger quadrangle formed by the four lines.
Published in:	NAVIGATION: Journal of the Institute of Navigation, Volume 1, Number 2
Pages:	35 - 40
Cite this article:	Richardson, Robert S., "CAPTAIN THOMAS HUBBARD SUMNER, 1807-1876", NAVIGATION: Journal of The Institute of Navigation, Vol. 1, No. 2, 1946, pp. 35-40.
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