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 v
... Dial- ling , and the comprehensive table of Differential Equa tions for the variations of triangles , are taken , simply with such alterations as fitted them better for general usefulness , from the Chevalier Delambre's admirable ...
... Dial- ling , and the comprehensive table of Differential Equa tions for the variations of triangles , are taken , simply with such alterations as fitted them better for general usefulness , from the Chevalier Delambre's admirable ...
Página 134
... dial , that is , a figure , the dif ferent lines of which , when the sun shines , indicate by the shadow of a style or gnomon the time of the day . 2. The general principles which serve as a basis to the theory of dialling , cannot be ...
... dial , that is , a figure , the dif ferent lines of which , when the sun shines , indicate by the shadow of a style or gnomon the time of the day . 2. The general principles which serve as a basis to the theory of dialling , cannot be ...
Página 135
... dial for London : for the shadow of the axis would fall upon each particular hour line of the dial , when it fell upon the like hour circle of the sphere . If the plane which intersects the sphere be imagined upright , and at the same ...
... dial for London : for the shadow of the axis would fall upon each particular hour line of the dial , when it fell upon the like hour circle of the sphere . If the plane which intersects the sphere be imagined upright , and at the same ...
Página 136
... dial . And since the earth it- self compared with its distance from the sun , may , in reference to this branch of ... dial , and the upper edge of which marks and bounds the shadow , is called the gnomon ; the superior edge of the said ...
... dial . And since the earth it- self compared with its distance from the sun , may , in reference to this branch of ... dial , and the upper edge of which marks and bounds the shadow , is called the gnomon ; the superior edge of the said ...
Página 137
... dial and that of the meridian passing through the style is called the meridian of the dial , or the hour line of 12 . 13. Those meridians passing through the style , which make angles of 15 ° , 30 ° , 45 ° , & c . with the meridian of ...
... dial and that of the meridian passing through the style is called the meridian of the dial , or the hour line of 12 . 13. Those meridians passing through the style , which make angles of 15 ° , 30 ° , 45 ° , & c . with the meridian of ...
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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