Navigation New ModelledW. and J. Mount, 1761 - 528 sider |
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Side vi
... fhall first discover it : For the supplying of which Want of an exact Me- thod to find the Longitude , I have , toward the latter End of this Treatife , inferted a very useful Method for finding the Longitude by the Sun , any Day at ...
... fhall first discover it : For the supplying of which Want of an exact Me- thod to find the Longitude , I have , toward the latter End of this Treatife , inferted a very useful Method for finding the Longitude by the Sun , any Day at ...
Side 4
... fhall first fhew in the following Cafes , and then proceed to fhew how it may be done without . AXIOM " AXIOM I. In all right - angled Plane Triangles , 4 The Conftruction of the Sines , & c . Chap . I. Sect Oblique Trigonometry ...
... fhall first fhew in the following Cafes , and then proceed to fhew how it may be done without . AXIOM " AXIOM I. In all right - angled Plane Triangles , 4 The Conftruction of the Sines , & c . Chap . I. Sect Oblique Trigonometry ...
Side 16
... fhall not fo much as name them ; but fhall lay down one Rule which is univerfally useful in all Cafes , and cafily remembered , and ' tis this ; Obferve how many Points are between the Point next to be laid down , and the Point oppofite ...
... fhall not fo much as name them ; but fhall lay down one Rule which is univerfally useful in all Cafes , and cafily remembered , and ' tis this ; Obferve how many Points are between the Point next to be laid down , and the Point oppofite ...
Side 23
... fhall take it off a Scale of leffer equal Parts , and find Meridional Dif- ference of Latitude by the Table . 1. Draw ABD , upon which fet off the proper Diffe- rence of Latitude 2208 from A to B , and the Meridional Difference of ...
... fhall take it off a Scale of leffer equal Parts , and find Meridional Dif- ference of Latitude by the Table . 1. Draw ABD , upon which fet off the proper Diffe- rence of Latitude 2208 from A to B , and the Meridional Difference of ...
Side 30
... fhall not trouble the Reader with them all , because many of them are altogether useless and impracticable at Sea ; I fhall therefore only infert thofe Me- thods that may serve as a Demonftration and Proof of the Proportions laid down ...
... fhall not trouble the Reader with them all , because many of them are altogether useless and impracticable at Sea ; I fhall therefore only infert thofe Me- thods that may serve as a Demonftration and Proof of the Proportions laid down ...
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Navigation New Modelled: Or a Treatise of Geometrical, Trigonometrical ... Wilson Uten tilgangsbegrensning - 1752 |
Navigation New Modelled: Or, a Treatise of Geometrical, Trigonometrical ... Henry Wilson Ingen forhåndsvisning tilgjengelig - 2018 |
Vanlige uttrykk og setninger
againſt alfo anſwer Bafe becauſe Cape Chord Column Compaffes confequently Courfe and Difference Courſe and Diſtance Cyphers Degrees demand the Courfe Dep Lat Dep Departure given Diff Difference of Latitude Difference of Lon Difference of Longitude Dift draw the Line Eaft faid fame fecond fhall find the Courfe firft firſt fo Sine fome ftance fubtract fuppofe given Number half Hypotenufe Interfection laft Lat Dep Lat Lati Latitude 50 Latitude and Departure leffer Longitude given meaſured Mercator's Sailing Merid Meridian Meridional Difference Middle Latitude Sailing Miles Minutes Sine muſt North obferve Parallel Parallel Sailing parture Perpendicular Plane Sailing Arithmetical Plane Triangles Point proper Difference Proportion Queftion Quotient Radius reft reprefent Right-angled RULE Secant Minutes Ship fails Ship in Latitude Side AC Side oppofite Sine Comp Sine Complement Sine Tangent South Square Sun's Table Tangent Secant thefe theſe tude uſe Weft ΙΟ
Populære avsnitt
Side xiv - In any plane triangle, the sum of tfte two sides containing either angle, is to their difference, as the tangent of half the sum of the other two angles, to the tangent of half their difference.
Side 185 - Multiply the moon's age by 4, and divide the product by 5 ; the quotient...
Side xiv - Then as the sum of the sides is to their difference, so is the tangent of half the sum of the unknown angles to the tangent of half their difference (Theor.
Side xiv - ... the sum of the segments of the base is to the sum of the sides as the difference of the sides to the difference of the segments of the base.
Side 231 - ... of the opposite parts. All of the ten formulas just listed can easily be derived from these rules. Oblique Spherical Triangles.— Formulas for the solution of oblique spherical triangles are developed from those for right spherical triangles. The law of sines states that in any spherical triangle the sines of the sides are proportional to the sines of their opposite angles: sin a sin b sin с...
Side xi - Circumference of every Circle is fuppofed to be Divided into 360 equal Parts called Degrees, and each Degree...
Side 24 - Then radius : log. 179-3 :: s. 8° 31' : log. ofi6'5i; which doubled is the diftance between Edyftone and Lizard 53-04 miles. For the other two, there are 2 fides, and an angle oppofite to one of them, given, to find the other fide.
Side 232 - Day, fubtradt the Complement of the Sun's Altitude, noting the half Sum, and the Remainder. 3. Then to find the Sun's Azimuth, it's thus ; to the Complement Arithmetic of the Sines of the Complement of the Latitude, and Complement of the Sun's Altitude, add the Sines of the aforefaid...
Side 231 - Perpendicular, let it fall from the End of a given Side, and oppofite to a given Angle...
Side 232 - The Tangents of the Bafes are proportional to the Tangents of the Angle at the Vertex.