Spherical trigonometryJ. Noon, 1736 |
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Página 5
... Side the Ecliptick , ( which is in the Middle thereof , ) that Space being equal to the Latitude or Deviation of any of the Planets ; in this Circle alfo are contained all the twelve Signs or Conftellations , thro ' which the Sun ...
... Side the Ecliptick , ( which is in the Middle thereof , ) that Space being equal to the Latitude or Deviation of any of the Planets ; in this Circle alfo are contained all the twelve Signs or Conftellations , thro ' which the Sun ...
Página 7
... Side ) there- from 23 ° 29 ′ ; they are the Limits of the Sun's great- eft Declination from the Equinoctial . The Northern Tropic paffeth by the beginning of Cancer , and therefore called the Tropic of Cancer , and is the Pa- rallel of ...
... Side ) there- from 23 ° 29 ′ ; they are the Limits of the Sun's great- eft Declination from the Equinoctial . The Northern Tropic paffeth by the beginning of Cancer , and therefore called the Tropic of Cancer , and is the Pa- rallel of ...
Página 25
... Side the Equator , viz . from E to and K , and from R to T and refpectively ; and let the Weeks be divided into Days ; and thus if your Projection be fufficiently large enough , you may have a very exact perpetual Almanack in this ...
... Side the Equator , viz . from E to and K , and from R to T and refpectively ; and let the Weeks be divided into Days ; and thus if your Projection be fufficiently large enough , you may have a very exact perpetual Almanack in this ...
Página 40
... Side of the Pole of the Projection , then will its Diameter be equal to the Difference of the Half Tan- gents of its greatest and leaft Distances from the Pole of the Primitive , fet off on one and the fame Side of the Center of the ...
... Side of the Pole of the Projection , then will its Diameter be equal to the Difference of the Half Tan- gents of its greatest and leaft Distances from the Pole of the Primitive , fet off on one and the fame Side of the Center of the ...
Página 70
... Side of an Houfe fhould decline from the South Weftward 24 ° 20 ' , and the Roof thereof ( which is in the Plane of a Great Circle oblique to the Hori- zon ) fhould recline from the Zenith northwards 369 oo ' . Now I would know in what ...
... Side of an Houfe fhould decline from the South Weftward 24 ° 20 ' , and the Roof thereof ( which is in the Plane of a Great Circle oblique to the Hori- zon ) fhould recline from the Zenith northwards 369 oo ' . Now I would know in what ...
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Términos y frases comunes
adjacent Angle alfo Altitude Analemma Analogy Arch Azimuth Bafe Baſe becauſe BIFH Cafe Center Chords Circles of Latitude Co-fine Co-tangent Colure Complement confequently Cufp Declination defcribe Degrees Demonftration Dial Diameter Diſtance draw E. D. THEOREM Eaft Ecliptic equal Equinoctial faid fame fhall fhew find the Angle find the Hypothenufe find the Leg find the Side firft firſt folving fuch fuppofe given the Side Globe greateſt half Sum Half-Tangent Horizon Hour-Lines Houſes Interfection laft Latitude leffer lefs Longitude meaſured Meridian muſt North Numbers Oblique Circle oppofite paffeth Parallel Perpendicular Plane recline Pofition Point Pole Prime Vertical Prob PROBLEM Projection Quadrant Radius Reclining Plane Right Afcenfion Right Line Right-angled Spherical Triangles Scheme Semicircle Sine Sine of half Sphere Spherical Angle Spherical Trigonometry Sun's Tangent of half thefe theſe thofe thoſe Tropic of Capricorn Weft Wherefore whofe
Pasajes populares
Página 75 - The three angles of a spherical triangle are together greater than two right angles and less than six right angles. Let A, B, C be the angles of a spherical triangle ; let a', b', o' be the sides of the polar triangle. Then by Art. 30, a...
Página 185 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Página 186 - The cosine of half the sum of two sides of a spherical triangle is to the cosine of half their difference as the cotangent of half the included angle is to the tangent of half the sum of the other two angles.
Página 186 - The cosine of half the sum of two angles of a spherical triangle is to the cosine of half their difference as the tangent of half the included side is to the tangent of half the sum of the other two sides.
Página 186 - The sine of half the sum of two angles of a spherical triangle is 'to the sine of half their difference as the tangent of half the included side is to the tangent of half the difference of the other two sides.
Página 241 - It commences in the morning and ends in the evening, when the sun is 18° below the horizon.
Página 5 - Equinoctial (counted from the beginning of Aries) which cometh to the Meridian with the Sun or Stars, or with any portion of the Eclyptick.
Página 365 - Dialogue, adapted purpofely to the Capacities of the Youth of both Sexes ; and adorned and illuftrated with variety of Copper- Plates.
Página 75 - Side *»» is the Supplement of the Angle H, and the Angle E of the Side G D.
Página 205 - Superficies to M ; And, as two right Angles are to F, So is half the fpherical Superficies to K.