A Treatise on Surveying: In which the Theory and Practice are Fully Explained. Preceded by a Short Treatise on Logarithms: and Also by a Compendious System of Plane Trigonometry. The Whole Illustrated by Numerous ExamplesE.C. & J. Biddle, 1865 - 428 Seiten |
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Seite 9
... Fourth Proportional to three Straight Lines ....... To find a Mean Proportional between two Straight Lines ...... To divide a Line into two Parts having a given Ratio ......... CHAPTER III . PLANE TRIGONOMETRY . SECTION 1. Definitions . 9.
... Fourth Proportional to three Straight Lines ....... To find a Mean Proportional between two Straight Lines ...... To divide a Line into two Parts having a given Ratio ......... CHAPTER III . PLANE TRIGONOMETRY . SECTION 1. Definitions . 9.
Seite 11
... Fourth Adjustment : The Horizontal Axis must be parallel to the Horizontal Plates ........ 104 ............................ Adjustments of the Vertical Limb . 105 First Adjustment : The Level must be parallel to the Line of Colli ...
... Fourth Adjustment : The Horizontal Axis must be parallel to the Horizontal Plates ........ 104 ............................ Adjustments of the Vertical Limb . 105 First Adjustment : The Level must be parallel to the Line of Colli ...
Seite 18
... fourth root of 4096. The index of this is 12. Divide this index by 4 , the degree of the root to be extracted , and the quotient will be 3 , which is the logarithm of 8 , the root required . Hence , to extract the root of a number , we ...
... fourth root of 4096. The index of this is 12. Divide this index by 4 , the degree of the root to be extracted , and the quotient will be 3 , which is the logarithm of 8 , the root required . Hence , to extract the root of a number , we ...
Seite 21
... fourth , at the head . Thus , if the number were 8976 , the last four figures 3083 of the mantissa of its loga- rithm would be found in the column headed 6 ; the first two , 95 , found in the second column , being common to them all ...
... fourth , at the head . Thus , if the number were 8976 , the last four figures 3083 of the mantissa of its loga- rithm would be found in the column headed 6 ; the first two , 95 , found in the second column , being common to them all ...
Seite 22
... fourth , at the top of the table . The last four figures of the logarithm are found opposite to the first three figures of the number , and under the fourth ; the first two figures of the logarithm being found in the first logarithmic ...
... fourth , at the top of the table . The last four figures of the logarithm are found opposite to the first three figures of the number , and under the fourth ; the first two figures of the logarithm being found in the first logarithmic ...
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A Treatise on Surveying: In Which the Theory and Practice Are Fully ... Samuel Alsop Keine Leseprobe verfügbar - 2018 |
Häufige Begriffe und Wortgruppen
ABCD acres adjacent angles adjacent sides bearings and distances calculate the area centre chains circle column compass correction Cosine Cotang decimal deflection determine Diff difference of latitude Dist divided division line double departure draw east equal error EXAMPLES field-notes figure given area given line given point Given the bearings horizontal hour angle inch instrument latitude and departure length line running logarithm mean proportional measured meridian method multiplier needle number of degrees offsets opposite parallel parallelogram perpendicular plat plate Polaris Problem protractor quotient radius ratio rectangle right angles right ascension rule scale sight sine square station straight line subtract survey surveyor Take the difference tance Tang tangent telescope theodolite tract of land transit trapezium triangle Trigonometry vernier whence
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Seite 38 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Seite 70 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Seite 27 - Root of a Number, Divide the logarithm of the number by the index of the required root.
Seite 33 - When one straight line meets another, so as to make two adjacent angles equal, each of these angles is called a right angle; and the first line is said to be perpendicular to the second.
Seite 195 - To multiply a decimal by 10, 100, 1000, &c., remove the decimal point as many places to the right as there are ciphers in the multiplier ; and if there be not places enough in the number, annex ciphers.
Seite 73 - ... will be — As the base or sum of the segments Is to the sum of the other two sides, So is the difference of those sides To the difference of the segments of the base.
Seite 37 - If two triangles have two sides and the included angle of one respectively equal to the sides and the included angle of the other, the triangles are congruent.
Seite 126 - If two triangles have two angles, and the included side of the one equal to two angles and the included side of the other, they are equal in all their parts.
Seite 39 - The angle at the centre of a circle is double the angle at the circumference on the same arc.
Seite 39 - The square of the hypothenuse of a right angled triangle is equal to the sum of the squares of both the other sides.