Elements of Plane and Spherical Trigonometry: With Their Applications to Heights and Distances Projections of the Sphere, Dialling, Astronomy, the Solution of Equations, and Geodesic OperationsBaldwin, Cradock, and Joy, 1816 - 244 páginas |
Dentro del libro
Resultados 6-10 de 32
Página 58
... Note . In chap . iii . case 3 , the same result is obtained by a different process . Example II . What are the angles of that plane triangle whose na- tural tangents are integers ? It is evident from equa . ( 4 ) that the sum of the ...
... Note . In chap . iii . case 3 , the same result is obtained by a different process . Example II . What are the angles of that plane triangle whose na- tural tangents are integers ? It is evident from equa . ( 4 ) that the sum of the ...
Página 74
... Note 1. The log tangents are found in this example by the method taught at p . 153 of the Introduction to Dr. Hutton's Logarithm Tables . Note 2. This method of determining the earth's ra- dius , though elegant in theory , is rendered ...
... Note 1. The log tangents are found in this example by the method taught at p . 153 of the Introduction to Dr. Hutton's Logarithm Tables . Note 2. This method of determining the earth's ra- dius , though elegant in theory , is rendered ...
Página 78
... Note . It will be a useful exercise for the student , to work out the computation by both these methods . The comparison of the results will serve to give him confi- dence in the deductions from the analytical investi- gations . EXAMPLE ...
... Note . It will be a useful exercise for the student , to work out the computation by both these methods . The comparison of the results will serve to give him confi- dence in the deductions from the analytical investi- gations . EXAMPLE ...
Página 88
... Note 1. Here the rule of the signs ( chap . iv . 9 ) serves all along to determine the kind or affection of the un- known parts . Note 2. In working by the logarithms , the student 88 Spherical Trigonometry .
... Note 1. Here the rule of the signs ( chap . iv . 9 ) serves all along to determine the kind or affection of the un- known parts . Note 2. In working by the logarithms , the student 88 Spherical Trigonometry .
Página 89
... Note 2. In working by the logarithms , the student must observe , that when the resulting log . is the log . of a quotient , 10 must be added to the index : when it is the log . of a product , 10 must be subtracted from the index . This ...
... Note 2. In working by the logarithms , the student must observe , that when the resulting log . is the log . of a quotient , 10 must be added to the index : when it is the log . of a product , 10 must be subtracted from the index . This ...
Otras ediciones - Ver todas
Términos y frases comunes
altitude angled spherical triangle azimuth base becomes bisect centre chap chord circle circle of latitude computation consequently cos² cosec cosine cotangent declination deduced determine dial diameter difference distance draw earth ecliptic equa equal equation Example find the rest formulæ given side h cos h half Hence horizon hour angle hypoth hypothenuse intersecting latitude logarithmic longitude measured meridian obliq oblique opposite angle parallel perpendicular plane angles plane triangle pole problem prop quadrant radius right angled spherical right angled triangle right ascension right line sec² secant sin A sin sin² sine solid angle sphere spherical excess spherical trigonometry star substyle sun's supposed surface tan² tangent theorem three angles three sides tion triangle ABC values versed sine versin vertical angle whence zenith