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 Joseph Cushing, 1816 - 472 páginas |
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Página x
... theorems and problems ; with the nature and use of the tables of logarithm numbers , sines , tangents , and secants . The second section contains plane trigonometry right angled and oblique , with its application in determining the ...
... theorems and problems ; with the nature and use of the tables of logarithm numbers , sines , tangents , and secants . The second section contains plane trigonometry right angled and oblique , with its application in determining the ...
Página 13
... Theorems and Problems : with the Nature and Use of the Tables of Logarithm Numbers , Sines , Tangents , and Secants . DEFINITION . SURVEYING , is that art which enables us to give a plan , or just representation , of any piece or parcel ...
... Theorems and Problems : with the Nature and Use of the Tables of Logarithm Numbers , Sines , Tangents , and Secants . DEFINITION . SURVEYING , is that art which enables us to give a plan , or just representation , of any piece or parcel ...
Página 36
... theorem is a proposition , wherein something is proposed to be demonstrated . A problem is a proposition , wherein something is to be done or effected . A lemma is some demonstration , previous and ne- cessary , to render what follows ...
... theorem is a proposition , wherein something is proposed to be demonstrated . A problem is a proposition , wherein something is to be done or effected . A lemma is some demonstration , previous and ne- cessary , to render what follows ...
Página 37
... as A is to B , so is C to D ; but when three quantities A , B , C , are proportional , the middle quantity is repeated , and they are written A : B :: B : C. GEOMETRICAL THEOREMS . THEOREM I. IF a right line falls GEOMETRY . 37.
... as A is to B , so is C to D ; but when three quantities A , B , C , are proportional , the middle quantity is repeated , and they are written A : B :: B : C. GEOMETRICAL THEOREMS . THEOREM I. IF a right line falls GEOMETRY . 37.
Página 38
... THEOREMS . THEOREM I. IF a right line falls on another , as A B , or EB , does on CD , ( fig . 20. ) it either makes with it two right angles , or two angles equal to two right angles . fig . 20 .上 1. If AB be perpendicular to CD ...
... THEOREMS . THEOREM I. IF a right line falls on another , as A B , or EB , does on CD , ( fig . 20. ) it either makes with it two right angles , or two angles equal to two right angles . fig . 20 .上 1. If AB be perpendicular to CD ...
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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 50 Dist ABCD acres altitude annexed Answer base bearing bisect blank line centre chains and links chord circle circumferentor Co-secant Secant Co-sine Co-tang column contained cyphers decimal decimal fraction Dep Lat difference 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 magnetical measure meridian distance multiplied needle number of degrees object off-sets parallel parallelogram perpendicular piece of ground plane Portmarnock PROB proportion protractor quotient radius right angles right line scale of equal SCHOLIUM sect semicircle side sights sine square root stationary distance sun's suppose survey taken tance Tang tangent thence theo theodolite THEOREM thro trapezium triangle ABC trigonometry true amplitude true azimuth two-pole chains vane variation whence