Spherical trigonometryJ. Noon, 1736 - Plane trigonometry |
From inside the book
Results 1-5 of 12
Page 86
... as the Sine of the Hypothenuse is to ER , B E , E F the Sine of the Perpendicular Arch That is in fhort , EH ; CP : CD :: ER : EF 2 , ED . THEO THEOREM XXIV . In the fame Triangles , the fame 86 Theorems of Spherical Trigonometry .
... as the Sine of the Hypothenuse is to ER , B E , E F the Sine of the Perpendicular Arch That is in fhort , EH ; CP : CD :: ER : EF 2 , ED . THEO THEOREM XXIV . In the fame Triangles , the fame 86 Theorems of Spherical Trigonometry .
Page 101
... Hypothenuse and either Side , AB , AC , are given ; there can be no Ambiguity ; and thus the third and fourth Cafe are free from doubt . 3. If both the Legs , or both the Angles , are given , as in Cafes 9 , 10 , there can be no ...
... Hypothenuse and either Side , AB , AC , are given ; there can be no Ambiguity ; and thus the third and fourth Cafe are free from doubt . 3. If both the Legs , or both the Angles , are given , as in Cafes 9 , 10 , there can be no ...
Page 105
... Hypothenuse , and one Oblique Angle ; As in Synop . Cafe 1 , and 2 . 2. Given the Hypothenufe , and one of the Legs ; As Cafe 3 , and 4 . 3. Given one Leg , and an adjacent Angle ; As Cafe 5 , and 7 . · 4. Given one Leg , and an ...
... Hypothenuse , and one Oblique Angle ; As in Synop . Cafe 1 , and 2 . 2. Given the Hypothenufe , and one of the Legs ; As Cafe 3 , and 4 . 3. Given one Leg , and an adjacent Angle ; As Cafe 5 , and 7 . · 4. Given one Leg , and an ...
Page 106
... of the Hyp . BC 44 52 9.8604730 So is the Tang , of the Angle C - 56 57-10.1865775 To the Co - Tan . of the Ang . B = 42 34 10.0370505 23 6 Cafe Cafe 2 . The Hypothenuse 8 1 BC = 44 106 Method 1. Of Solv . R. A. S. Triangles.
... of the Hyp . BC 44 52 9.8604730 So is the Tang , of the Angle C - 56 57-10.1865775 To the Co - Tan . of the Ang . B = 42 34 10.0370505 23 6 Cafe Cafe 2 . The Hypothenuse 8 1 BC = 44 106 Method 1. Of Solv . R. A. S. Triangles.
Page 107
Benjamin Martin. Cafe 2 . The Hypothenuse 8 1 BC = 44 52 Given and one of the Legs , as BA = 36 15 1. To find the other Leg AC . The Analogy esBA : ResBC : csAC . That is , ୪ As the Co - fine of the Leg BA = 36 15 = 9.9065745 Is to the ...
Benjamin Martin. Cafe 2 . The Hypothenuse 8 1 BC = 44 52 Given and one of the Legs , as BA = 36 15 1. To find the other Leg AC . The Analogy esBA : ResBC : csAC . That is , ୪ As the Co - fine of the Leg BA = 36 15 = 9.9065745 Is to the ...
Contents
1 | |
2 | |
19 | |
25 | |
43 | |
49 | |
55 | |
103 | |
240 | |
246 | |
252 | |
258 | |
264 | |
275 | |
281 | |
294 | |
112 | |
124 | |
131 | |
138 | |
161 | |
166 | |
200 | |
208 | |
213 | |
221 | |
234 | |
297 | |
305 | |
316 | |
322 | |
325 | |
334 | |
341 | |
347 | |
353 | |
359 | |
366 | |
Common terms and phrases
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
Popular passages
Page 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...
Page 185 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Page 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.
Page 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.
Page 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.
Page 241 - It commences in the morning and ends in the evening, when the sun is 18° below the horizon.
Page 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.
Page 365 - Dialogue, adapted purpofely to the Capacities of the Youth of both Sexes ; and adorned and illuftrated with variety of Copper- Plates.
Page 75 - Side *»» is the Supplement of the Angle H, and the Angle E of the Side G D.
Page 205 - Superficies to M ; And, as two right Angles are to F, So is half the fpherical Superficies to K.