## Elements of Plane and Spherical Trigonometry: With Their Applications to Heights and Distances Projections of the Sphere, Dialling, Astronomy, the Solution of Equations, and Geodesic Operations |

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Elements of Plane and Spherical Trigonometry: With Their Applications to ... Olinthus Gregory No preview available - 2018 |

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altitude apparent application base becomes body called centre chap chapter circle computation consequently corresponding cosc cosec cosine declination deduced demonstration described determine dial difference distance dividing draw drawn earth equa equal equation error evident Example expression figure former formulæ given gives half height Hence horizon hour line inclination included intersecting known latitude latter less logarithmic longitude means measured meridian method natural Note observed obtain opposite parallel passing perpendicular plane plane triangle pole positive preceding problem projection prop quadrant quantities radius regarded respectively right angled rules secant sides sine solid angle sphere spherical triangle star Substituting supposed surface tables taken taking tangent theorem third tion trigonometry values vertical whence