Nine Geometricall Exercises: For Young Sea-men, and Others that are Studious in Mathematicall Practices ... All which Exercises are Geometrically Performed, by a Line of Chords and Equal Parts, by Waies Not Usually Known Or Practised. Unto which the Analogies Or Proportions are Added, Whereby They May be Applied to the Chiliads of Logarithms, and Canons of Artificiall Sines and Tangents
J. Flesher, 1704 - 192 sider
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Nine Geometricall Exercises: For Young Sea-Men, and Others That Are Studious ...
Ingen forhåndsvisning tilgjengelig - 2015
againſt Aldebaran alſo Azimuth Baſe becauſe beſides Braſs C H A Canons for Calculation Caſe Centre Circle Co-fine Co-tangent Compaſſes Complement conſtituted Courſe Declination Degrees deſcribe the Arch Dial Difference of Longitude Diſtance Eaſt Ecliptick equal Extreams firſt given Line Globe greateſt half Difference half Sum half the Difference half the Sum Horizon Hour Hour-lines Houſe Hypotenuſe Index Inſtrument laſt leſs Leſſer Logar Longitude Meaſure Meridian muſt North Number Oblique Oblique-angled obſerved Obtuſe oppoſite P R O Parallel paſs paſſing Perpendicular Place Plain Triangles Planets Point Pole Poſition Quadrant of Altitude Radius repreſent reſolved reſpect Right Angle Right Aſcenſion Right Line Riſing Rumb ſaid ſame ſee ſet ſeveral ſhall find ſhew Sine ſome Sºuadrant South Spherical Triangle ſtand Star Stile ſubſtraćted ſuch Sun's ſuppoſe Tangent of half thereof theſe thoſe thoſe Sides Trigonometrical Calculation uſe Weſt whoſe
Side 175 - Ocean, the first thing which strikes us is, that, the north-east and south-east monsoons, which are found the one on the north and the other on...
Side 3 - A circle is a plane figure contained by one line, which is Called the circumference, and is fuch that all ftraight lines drawn from a certain point within the figure...
Side 73 - That i г is, the tangent of half the bafe is to the tangent of half the fum of the...
Side 39 - So is the Tangent of half the Sum of the oppofite Angles to the Tangent of half their Difference.
Side 74 - Prove that, in any plane triangle, the base is to the difference of the other two sides, as the sine of half the sum of the angles at the base, to the sine of half their difference : also, that the base is to the sum of the other two sides, as the cosine of half the sum of the angles at the base, to the cosine of half their difference. Ex.
Side 219 - Bring 22 d. of Capricorn to the Meridian, and fet the Hour Index to 1 2. Then turn the Globe about till Aldebaran be under the Meridian, and then you (hall find the Index to point at 42 m.
Side 163 - A line drawn from one pole to the other is called the axis of the magnet-.
Side 30 - Diameter pafllng thro' the other End ; or it is half the Chord of twice the Arch ; fo BF is the Sine of the Arches BA, BD.