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 ; if they lie between the equator and the south pole they have south latitude . 8. All places that lie under the same meridian have the same longitude ; and those places which lie under different meridians have different ...
... latitude ; if they lie between the equator and the south pole they have south latitude . 8. All places that lie under the same meridian have the same longitude ; and those places which lie under different meridians have different ...
Página 120
... 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 of the ...
... 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 of the ...
Página 123
... latitude L : the equator will be projected into its diameter eq , making with the horizon an angle Hсe 90 ° — L : the parallels to the equator will be represented by chords , such as AB parallel to the diameter of the equator : the ...
... latitude L : the equator will be projected into its diameter eq , making with the horizon an angle Hсe 90 ° — L : the parallels to the equator will be represented by chords , such as AB parallel to the diameter of the equator : the ...
Página 131
... latitude L any rtan ( 90 ° -L ) = tan 45 ° — L or , .... if the lat . be south rtan ( 45 ° + 31 ) . As for the meri- - B dians , whose planes 270 ° all pass through the place of the eye , they all become stres diameters , which divide ...
... latitude L any rtan ( 90 ° -L ) = tan 45 ° — L or , .... if the lat . be south rtan ( 45 ° + 31 ) . As for the meri- - B dians , whose planes 270 ° all pass through the place of the eye , they all become stres diameters , which divide ...
Página 132
... latitude all intersecting mutually at those two poles , and then the parallels to the ecliptic . Thus , on the ... latitude intersecting mutu ally in Д and : E will be the centre of that circle of latitude which passes through 0 ° and ...
... latitude all intersecting mutually at those two poles , and then the parallels to the ecliptic . Thus , on the ... latitude intersecting mutu ally in Д and : E will be the centre of that circle of latitude which passes through 0 ° and ...
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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