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 OperationsBaldwin, Cradock, and Joy, 1816 - 244 páginas |
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Página 118
... latitude of any place upon the surface of the earth , is its distance from the equator measured on an arc of the meridian passing through it . A less circle passing through any place parallel to the equator is called a parallel of latitude ...
... latitude of any place upon the surface of the earth , is its distance from the equator measured on an arc of the meridian passing through it . A less circle passing through any place parallel to the equator is called a parallel of latitude ...
Página 120
... circle of latitude passing through the body . 18. The latitude of a body is its distance from the ecliptic measured upon a secondary to that circle . And the angle formed at the body by two great circles , one passing through the pole ...
... circle of latitude passing through the body . 18. The latitude of a body is its distance from the ecliptic measured upon a secondary to that circle . And the angle formed at the body by two great circles , one passing through the pole ...
Página 123
... circle perpendicular to the plane of projection is represented by its diameter ; and every circle perpendi- cular to ... latitude L : the equator will be projected into its diameter eq , making with the horizon an angle Hсe 90 ° — L ...
... circle perpendicular to the plane of projection is represented by its diameter ; and every circle perpendi- cular to ... latitude L : the equator will be projected into its diameter eq , making with the horizon an angle Hсe 90 ° — L ...
Página 131
... circles will be the tangents of the halves of the polar distances . Thus , for the polar circle .... rtan ( 23 ° 28 ... circle rtan ( 156 ° 32 ′ ) tan 78 ° 16 ′ for latitude L any rtan ( 90 ° -L ) = tan 45 ° — L or , .... if the lat ...
... circles will be the tangents of the halves of the polar distances . Thus , for the polar circle .... rtan ( 23 ° 28 ... circle rtan ( 156 ° 32 ′ ) tan 78 ° 16 ′ for latitude L any rtan ( 90 ° -L ) = tan 45 ° — L or , .... if the lat ...
Página 132
... circles of latitude intersecting mutu ally in Д and : E will be the centre of that circle of latitude which passes through 0 ° and 180 ° , or of the equinoctial colure , which will be the circle vxx . TЕII will be the solstitial colure ...
... circles of latitude intersecting mutu ally in Д and : E will be the centre of that circle of latitude which passes through 0 ° and 180 ° , or of the equinoctial colure , which will be the circle vxx . TЕII will be the solstitial colure ...
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Términos y frases comunes
altitude angled spherical triangle azimuth base becomes bisect centre chap chord circle circle of latitude computation consequently cos² cosec cosine cotangent declination deduced determine dial diameter difference distance draw earth ecliptic equa equal equation Example find the rest formulæ given side h cos h half Hence horizon hour angle hypoth hypothenuse intersecting latitude logarithmic longitude measured meridian obliq oblique opposite angle parallel perpendicular plane angles plane triangle pole problem prop quadrant radius right angled spherical right angled triangle right ascension right line sec² secant sin A sin sin² sine solid angle sphere spherical excess spherical trigonometry star substyle sun's supposed surface tan² tangent theorem three angles three sides tion triangle ABC values versed sine versin vertical angle whence zenith