A treatise on spherical trigonometry, by W.J. M'Clelland and T. Preston, Parte1 |
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Página 2
... Latitude are small circles . The angular distance AC is called the Spherical Radius of the circle CC ' . It is obvious that the spherical radius of a great circle is a quadrant . 3. Only one Great Circle can be drawn through two given ...
... Latitude are small circles . The angular distance AC is called the Spherical Radius of the circle CC ' . It is obvious that the spherical radius of a great circle is a quadrant . 3. Only one Great Circle can be drawn through two given ...
Página 4
... latitude are primaries , and the meridians are secondaries to them . In fig . 1 regarding the circle CC ' as a primary , the circle ACB during its revolution round AB is in all posi- tions a secondary to CC ' . Hence it follows that ...
... latitude are primaries , and the meridians are secondaries to them . In fig . 1 regarding the circle CC ' as a primary , the circle ACB during its revolution round AB is in all posi- tions a secondary to CC ' . Hence it follows that ...
Página 5
... latitude of a place is measured by the arc of the meridian intercepted between the place and the Equator . 6. The Angle between two Planes is measured by the angle between any two lines drawn , one in each plane , perpendicular to their ...
... latitude of a place is measured by the arc of the meridian intercepted between the place and the Equator . 6. The Angle between two Planes is measured by the angle between any two lines drawn , one in each plane , perpendicular to their ...
Página 6
... latitude of the place and the corre- sponding arc of the Equator . Thus ab = AB cos ( latitude ) ; or , the distance ab between two places in the same latitude , measured on the parallel , is equal to the difference 6 The Sphere .
... latitude of the place and the corre- sponding arc of the Equator . Thus ab = AB cos ( latitude ) ; or , the distance ab between two places in the same latitude , measured on the parallel , is equal to the difference 6 The Sphere .
Página 7
... latitude . 8. The Lune . — A Lune is a portion of the surface of a sphere enclosed by two great circles . In fig . 1 the area ACBEA is a lune , so also is the area AEBC'A . The angle between the two great circles bounding the lune is ...
... latitude . 8. The Lune . — A Lune is a portion of the surface of a sphere enclosed by two great circles . In fig . 1 the area ACBEA is a lune , so also is the area AEBC'A . The angle between the two great circles bounding the lune is ...
Otras ediciones - Ver todas
A Treatise On Spherical Trigonometry, by W.J. M'Clelland and T. Preston William John M'Clelland Sin vista previa disponible - 2023 |
A Treatise on Spherical Trigonometry, by W. J. M'Clelland and T. Preston William John M'Clelland Sin vista previa disponible - 2016 |
A Treatise On Spherical Trigonometry, by W.J. M'Clelland and T. Preston William John M'Clelland Sin vista previa disponible - 2023 |
Términos y frases comunes
ambiguity arc joining Art Exam base angles calculate centre Chap cos a sin cos b cos cos(a cos² cosc cosines cot A cot cot B+ cot² denote determine diagonals drawn equation equilateral Examples expression find the locus formula geometrically Given the base Hence hypotenuse internal bisector joining the middle L cot L sin latitude middle points Napier's Analogies notation of Ex opposite angles opposite sides perpendicular plane triangle plano polar triangle pole quadrant radius respectively right angle right-angled triangle Science and Art sec a sec secondaries segments Similarly sin b sin sin c cos sin² sin² a sin² sines small circle solid angle solve the triangle sphere spherical triangle subsidiary angle subtended surface tan² tana tangents Theorem triangle ABC triangle is impossible vertex vertical angle
Pasajes populares
Página 78 - A cos 6 = cos a cos c + sin a sin c cos B cos c = cos a cos 6 + sin a sin 6 cos C Law of Cosines for Angles cos A = — cos B...
Página 17 - The angles at the base of an isosceles triangle are equal to one another; and if the equal sides be produced, the angles -upon the other side of the base shall be equal.
Página 17 - The rectangle contained by the diagonals of a quadrilateral inscribed in a circle is equal to the sum of the two rectangles contained by its opposite sides.
Página 28 - Show that any side of a triangle is greater than the difference between the other two sides.
Página 37 - C . cos. a . sin. 6 . cos. c _ — 2 . sin. A . sin. B . sin. C . sin. a . sin. b . sin. c I — 2 sin.
Página 99 - BG; that is, the base is to the sum of the sides as the difference of the sides is to the sum or difference of the segments of the base made by the perpendicular from the vertex, according as the...
Página 114 - B . sin c = sin b . sin C cos a = cos b . cos c + sin b . sin c cos b = cos a . cos c + sin a . sin c cos A cos B cos c = cos a . cos b + sin a . sin b . cos C ..2), cotg b . sin c = cos G.
Página 39 - Thus the sines of the angles of a spherical triangle are proportional to the sines of the opposite sides.
Página 18 - If two triangles have two sides and the included angle of the one, equal to two sides and the included angle of the other, each to each, the two triangles will be equal.
Página 110 - A = - cos B cos C + sin B sin C cos a. Similarly cos B = - cos C...