A Treatise on Plane and Spherical Trigonometry: With Their Most Useful Practical ApplicationsJ. Johnson, 1806 - 419 páginas |
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Página 75
... , may be readily conceived , from observing that all the meridians pass through the N. and S. poles , and are perpendicular to the equator , and to all the parallels of latitude , GENERAL PROPERTIES OF SPHERICAL TRIANGles . 1. Any side , ...
... , may be readily conceived , from observing that all the meridians pass through the N. and S. poles , and are perpendicular to the equator , and to all the parallels of latitude , GENERAL PROPERTIES OF SPHERICAL TRIANGles . 1. Any side , ...
Página 184
... latitude , or of declination . Parallels of celestial latitude are small circles pa- rallel to the ecliptic ; and parallels of altitude , or alma- canters , are small circles parallel to the horizon . The equinoctial points are the two ...
... latitude , or of declination . Parallels of celestial latitude are small circles pa- rallel to the ecliptic ; and parallels of altitude , or alma- canters , are small circles parallel to the horizon . The equinoctial points are the two ...
Página 185
... latitude of any celestial object , is its distance north or south from the ecliptic , as measured on a cir- cle of longitude passing through its centre . The latitude of any place on the earth , is its distance north or south from the ...
... latitude of any celestial object , is its distance north or south from the ecliptic , as measured on a cir- cle of longitude passing through its centre . The latitude of any place on the earth , is its distance north or south from the ...
Página 186
With Their Most Useful Practical Applications John Bonnycastle. The co - latitude , or polar distance , of any celestial object is an arc of a meridian contained between the centre of that object and ... latitude, or polar distance, of ...
With Their Most Useful Practical Applications John Bonnycastle. The co - latitude , or polar distance , of any celestial object is an arc of a meridian contained between the centre of that object and ... latitude, or polar distance, of ...
Página 193
... latitudes are also subject to a small variation . ( d ) In order that the memory may not be overburthened by a multiplicity of names , astronomers mark the stars of each constel- lation with a letter of the Greek alphabet , denoting ...
... latitudes are also subject to a small variation . ( d ) In order that the memory may not be overburthened by a multiplicity of names , astronomers mark the stars of each constel- lation with a letter of the Greek alphabet , denoting ...
Otras ediciones - Ver todas
A Treatise on Plane and Spherical Trigonometry: With Their Most Useful ... John Bonnycastle Sin vista previa disponible - 2014 |
A Treatise on Plane and Spherical Trigonometry: With Their Most Useful ... John Bonnycastle Sin vista previa disponible - 2018 |
Términos y frases comunes
A B C acute adjacent angle Aldebaran ambiguous azimuth centre complement cos² cosec cosine describe a circle diff difference distance draw the diameters ecliptic equal equation Example extent will reach find the rest former formulæ given leg given side Given two sides greater than 90 Greenwich height horizon hypothenusal angle incd latitude leg BC less than 90 Log sine logarithms longitude meridian moon's oblique oblique-angled spherical triangle observed obtuse opposite angle parallax perpendicular plane triangle point of aries points pole quadrantal spherical triangle radius required to find right ascension right-angled spherical triangle RULE scale of chords secant semitangent side AC sides and angles sin a sin sin² sines sphere spherical angle spherical triangle ABC spherical trigonometry star subtracted sun's declination supplement tangents THEOREM three angles three sides trigonometry whence
Pasajes populares
Página xxxi - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds.
Página 6 - ... for the second term, and the greater for the first ; and in either case multiply the second and third terms together, and divide the product by the first for the answer, which will always be of the same denomination as the third term.
Página 329 - C' (89) (90) (91) (92) (93) 112. In any plane triangle, the sum of any two sides is to their difference as the tangent of half the sum of the opposite angles is to the tangent of half their difference.
Página 363 - The sum of any two sides of a spherical triangle is greater than the third side, and their difference is less than the third side.
Página vii - 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 13 - To find the other side: — as the sum of the two given sides is to their difference, so is the tangent of half the sum of their opposite angles to the tangent of half their difference...
Página 17 - As the base or sum of the segments Is to the sum of the other two sides, So is the difference of those sides To the difference of the segments of the base.
Página 2 - SECANT of an arc, is a straight line drawn from the centre, through one end of the arc, and extended to the tangent which is drawn from the other end.
Página 181 - The AMPLITUDE of any object in the heavens is an arc of the horizon, contained between the centre of the object when rising, or setting, and the east or west points of the horizon. Or, it is...
Página 75 - Having given two sides and an angle opposite to one of them, or two angles and a side opposite to one of them.