American practical navigator: an epitome of navigation and nautical astronomy (1914)
Bowditch, Nathaniel, 1773-1838, Logan, George Wood, 1868-1915, United States. Navy Dept. Bureau of Equipment · Washington, Govt. Print. Off · leaf 170
and, since the known difference of longitude between the points At and Bx is composed of the sum of At O and Bt O in Case I, and the difference of Aj O and E1 O inCase II, we have A, = AX B^ + OPxF^OP (F^F,), in Case I, and^OP (^-F,), in Case II. thus: From which, placing the known quantities on…
Navigation · Nautical astronomy
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