A Treatise on Plane and Spherical Trigonometry: With Their Most Useful Practical ApplicationsJ. Johnson, 1806 - 419 σελίδες |
Αναζήτηση στο βιβλίο
Αποτελέσματα 1 - 5 από τα 20.
Σελίδα 187
... rising or setting , and the east or west points of the horizon . The azimuth of any of the heavenly bodies , is an arc of the horizon contained between an azimuth cir- cle , passing through the centre of the object , and the north or ...
... rising or setting , and the east or west points of the horizon . The azimuth of any of the heavenly bodies , is an arc of the horizon contained between an azimuth cir- cle , passing through the centre of the object , and the north or ...
Σελίδα 188
... rising or setting of a planet , or star , is when it rises at sun - set , or sets at sun - rise ; and the cosmi- cal rising or setting is when it rises or sets with the sun , The heliacal rising of a star , is when it appears ( y ) ...
... rising or setting of a planet , or star , is when it rises at sun - set , or sets at sun - rise ; and the cosmi- cal rising or setting is when it rises or sets with the sun , The heliacal rising of a star , is when it appears ( y ) ...
Σελίδα 190
... rising of any celestial object , is when its centre appears in the eastern part of the horizon ; and its setting is when its centre comes to the western part of the horizon . The culminating of any celestial object , is the time when it ...
... rising of any celestial object , is when its centre appears in the eastern part of the horizon ; and its setting is when its centre comes to the western part of the horizon . The culminating of any celestial object , is the time when it ...
Σελίδα 191
... rising to its setting , and from its setting to its rising ( a ) . The equation of time , is the difference between ap- parent or solar time , as shown by a true sun - dial , and mean or common time , as shown by a well regulated clock ...
... rising to its setting , and from its setting to its rising ( a ) . The equation of time , is the difference between ap- parent or solar time , as shown by a true sun - dial , and mean or common time , as shown by a well regulated clock ...
Σελίδα 205
... rising and setting . Example 1 . Given the latitude of London 51 ° 32 ′ N. , and the sun's declination on the 21st of June , being the longest day , 23 ° 28 ′ N .; required his amplitude , ascensional difference , and the time of his rising ...
... rising and setting . Example 1 . Given the latitude of London 51 ° 32 ′ N. , and the sun's declination on the 21st of June , being the longest day , 23 ° 28 ′ N .; required his amplitude , ascensional difference , and the time of his rising ...
Άλλες εκδόσεις - Προβολή όλων
A Treatise on Plane and Spherical Trigonometry: With Their Most Useful ... John Bonnycastle Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2014 |
A Treatise on Plane and Spherical Trigonometry: With Their Most Useful ... John Bonnycastle Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2018 |
Συχνά εμφανιζόμενοι όροι και φράσεις
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
Δημοφιλή αποσπάσματα
Σελίδα 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.
Σελίδα 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.
Σελίδα 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.
Σελίδα 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.
Σελίδα 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.
Σελίδα 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...
Σελίδα 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.
Σελίδα 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.
Σελίδα 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...
Σελίδα 75 - Having given two sides and an angle opposite to one of them, or two angles and a side opposite to one of them.