The new American practical navigator : being an epitome of navigation, containing all the tables necessary ... (1802)
Bowditch, Nathaniel, 1773-1838, Lee, Marvin, former owner. DSI, Stuart, Gilbert, 1755-1828 DSI, Burndy Library, donor. DSI · [Salem] : Printed at Newburyport, Mass., 1802, by Edmund M. Blunt, for Cushing and Appleton, Salem : Sold by every book-seller, ship- chandler, and mathematical-instrument-maker in the United States and West Indies · leaf 69
orems, and a trigonometrical canon,^exhibiting the natural or the logarithmic fine, tangent, and fecant,to everydegree and minute of the quadrant.* The theorems alluded to are the fol-lowing. THEOREM I.In any right-angled triangle, if the hypotenufe he made radius, one fideivill be theji?ie of the… … For, ift. If in the right-angled plane triangle ACB (fig, r.) we makethe hypotenufe AB radius, and upon the centre A defcribe the arch BE, tomeet AC produced in E j then it is evident, that EC is the fine of the archBE (or the fine of the angle BAC) and that AC is the co-fine of the fameangle : and…
Navigation · Nautical astronomy
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
