A Treatise on Practical Surveying: Which is Demonstrated from Its First Principles : Wherein Every Thing that is Useful and Curious in that Art, is Fully Considered and ExplainedF. Lucas, jun. and Cushing & Jewett, J. Robinson printer, 1822 - 326 páginas |
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Página 9
... called the denominator ; and if we chuse to take any number of such parts less than the whole , this is called the numerator of a fraction . The numerator in the vulgar form is always wrote over 2 THE ...
... called the denominator ; and if we chuse to take any number of such parts less than the whole , this is called the numerator of a fraction . The numerator in the vulgar form is always wrote over 2 THE ...
Página 10
... called 5 twelfths , and the latter 7 twelfths of an inch , yard , perch , & c . or of whatever the whole thing originally was . Fractions are expressed in two forms , that is , ei- ther vulgarly or decimally . All fractions whose ...
... called 5 twelfths , and the latter 7 twelfths of an inch , yard , perch , & c . or of whatever the whole thing originally was . Fractions are expressed in two forms , that is , ei- ther vulgarly or decimally . All fractions whose ...
Página 20
... called the root of that square ; thus 9 is the square of 3 , and 3 is the root of 9 , for 3 multiplied by 3 is 9 . If a square number be given to find its root , observe if the number of figures or places in the given square be odd or ...
... called the root of that square ; thus 9 is the square of 3 , and 3 is the root of 9 , for 3 multiplied by 3 is 9 . If a square number be given to find its root , observe if the number of figures or places in the given square be odd or ...
Página 26
... called an an- gle . Thus fig . 4. the inclination of the line AB to the line BC meeting each other in the point B. or the opening of the two lines BA and BC , is called an angle , as ABC . B. 4 fig . 4 . A C Note , when an angle is ...
... called an an- gle . Thus fig . 4. the inclination of the line AB to the line BC meeting each other in the point B. or the opening of the two lines BA and BC , is called an angle , as ABC . B. 4 fig . 4 . A C Note , when an angle is ...
Página 27
... called a circle ; and the curve line described by the point B , is called the circumference , or the periphery of a circle ; the fixed point C is called its centre . fig . 8 . D F B E 45. The describing line CB . is called the semi ...
... called a circle ; and the curve line described by the point B , is called the circumference , or the periphery of a circle ; the fixed point C is called its centre . fig . 8 . D F B E 45. The describing line CB . is called the semi ...
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A Treatise of Practical Surveying: Which is Demonstrated From Its First ... Robert Gibson Sin vista previa disponible - 2021 |
Términos y frases comunes
20 perches ABCD acres altitude Answer base bearing blank line centre chains and links chord circle circumferentor Co-secant co-sine Co-tang column compass contained cyphers decimal decimal fraction difference Dist divided divisor draw east edge EXAMPLE feet field-book figures four-pole chains given angle half the sum height Hence hypothenuse inches instrument latitude length logarithm measure meridian distance multiplied needle number of degrees object off-sets opposite parallel parallelogram perpendicular piece of ground plane polygon Portmarnock PROB proportion protractor quotient radius right angles right line scale of equal SCHOLIUM secant second station sect semicircle side sights sine square root stationary distance stationary line sun's suppose survey taken tang tangent thence theo theodolite THEOREM thro triangle ABC trigonometry true amplitude true azimuth two-pole chains vane variation whence