The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this Art. With a New Set of Accurate Mathematical TablesA. S. Barnes, 1839 - 412 páginas |
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Página 21
... fourth , or required quantity , may be as much greater or less than the third as the second term is greater or less than the first , then multiply the second and third terms together , and divide the product by the first term , and the ...
... fourth , or required quantity , may be as much greater or less than the third as the second term is greater or less than the first , then multiply the second and third terms together , and divide the product by the first term , and the ...
Página 22
... fourth power . 8 3276885 = Answer . EXAMPLES FOR EXERCISE . What is the second power of 3.05 ? Ans . 9.3025 . What is the third power of 85.3 ? Ans . 620650.477 . What is the fourth power of .073 ? Ans . .000028398241 . What is the ...
... fourth power . 8 3276885 = Answer . EXAMPLES FOR EXERCISE . What is the second power of 3.05 ? Ans . 9.3025 . What is the third power of 85.3 ? Ans . 620650.477 . What is the fourth power of .073 ? Ans . .000028398241 . What is the ...
Página 23
... fourth root , because 3x3x3x3 = 34 = 81 . Again , if 729 be the given power , and its cube root be required , the answer is 9 , for 9 × 9 × 9 = 729 ; and if the sixth root of that number be required , it is found to be 3 , for 3 × 3 × 3 ...
... fourth root , because 3x3x3x3 = 34 = 81 . Again , if 729 be the given power , and its cube root be required , the answer is 9 , for 9 × 9 × 9 = 729 ; and if the sixth root of that number be required , it is found to be 3 , for 3 × 3 × 3 ...
Página 30
... fourth by 7 , & c . , and let these quotients be written orderly under one another ; add them together , and their sum will be a logarithm . To this logarithm add the logarithm of the next less number , and the sum will be the logarithm ...
... fourth by 7 , & c . , and let these quotients be written orderly under one another ; add them together , and their sum will be a logarithm . To this logarithm add the logarithm of the next less number , and the sum will be the logarithm ...
Página 36
... fourth term , or answer . Or , -add together the arithmetical complement of the loga- rithm of the first term , and the logarithms of the second and third terms ; the sum , rejecting 10 from the index , will be the logarithm of the fourth ...
... fourth term , or answer . Or , -add together the arithmetical complement of the loga- rithm of the first term , and the logarithms of the second and third terms ; the sum , rejecting 10 from the index , will be the logarithm of the fourth ...
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Términos y frases comunes
ABCD acres altitude arch base bearing blank line centre chains and links circle circumferentor column compasses contained Cosine Sine cube root decimal diagonal diameter difference of latitude divided divisions divisor draw east ecliptic edge EXAMPLE feet field-book figure four-pole chains geometrical series given angle given number half the sum height Hence horizon glass hypothenuse inches instrument length logarithm manner measure meridian distance multiplied needle nonius number of degrees object observed opposite parallelogram perches perpendicular plane prob PROBLEM proportion protractor quadrant quotient radius rhombus right angles right line scale of equal screw secant sect sector semicircle side Sine Cotang square root station stationary distance subtract suppose survey taken Tang tangent theo theodolite THEOREM trapezium triangle ABC trigonometry two-pole chains vane vulgar fraction whence
Pasajes populares
Página 49 - The angle in a semicircle is a right angle ; the angle in a segment greater than a semicircle is less than a right angle ; and the angle in a segment less than a semicircle is greater than a right angle.
Página 41 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, &c.
Página 41 - The radius of a circle is a right line drawn from the centre to the circumference.
Página 45 - A lemma is something which is premised, or demonstrated, in order to render what follows more easy. A corollary is a consequent truth derived immediately from some preceding truth or demonstration.
Página 35 - DIVISION BY LOGARITHMS. RULE. From the logarithm of the dividend subtract the logarithm of the divisor, and the number answering to the remainder will be the quotient required.
Página 21 - Then multiply the second and third terms together, and divide the product by the first term: the quotient will be the fourth term, or answer.