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 σελίδες |
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Σελίδα ix
... mathematical sciences , that the rest have met with much greater improvements from the peas of · the most eminent mathematicians , while this seems to 2 PREFACE . THE word geometry imports no more than to measure ...
... mathematical sciences , that the rest have met with much greater improvements from the peas of · the most eminent mathematicians , while this seems to 2 PREFACE . THE word geometry imports no more than to measure ...
Σελίδα 14
... greater than the second ; and the second ten times greater than the third , 3 03 10 100 Hence it appears , that as the value and denomination of any figure or numbers of figures in common arith- metick is enlarged , and becomes ten or ...
... greater than the second ; and the second ten times greater than the third , 3 03 10 100 Hence it appears , that as the value and denomination of any figure or numbers of figures in common arith- metick is enlarged , and becomes ten or ...
Σελίδα 15
... greater , by placing one , or two , or three cyphers after it ; so in decimal arithmetick , the value of any figure or number of figures , decreases , and becomes ten , or a hundred , or a thousand times less , while the denomination of ...
... greater , by placing one , or two , or three cyphers after it ; so in decimal arithmetick , the value of any figure or number of figures , decreases , and becomes ten , or a hundred , or a thousand times less , while the denomination of ...
Σελίδα 30
... E 12. An obtuse angle is that which is greater than than a right one , as the angle ADE , fig . 7. and an acute an- gle is less than a right one , as EDB , fig . 7 . 13. Acute and obtuse angles in general are called oblique 30 GEOMETRY .
... E 12. An obtuse angle is that which is greater than than a right one , as the angle ADE , fig . 7. and an acute an- gle is less than a right one , as EDB , fig . 7 . 13. Acute and obtuse angles in general are called oblique 30 GEOMETRY .
Σελίδα 35
... to be understood . AXIOMS OR SELF - EVIDENT TRUTHS . 1. Things that are equal to one and the same thing , are equal to each other . 2. The whole is greater than its part .. 3. The whole is equal to all its parts . GEOMETRY . 35 %
... to be understood . AXIOMS OR SELF - EVIDENT TRUTHS . 1. Things that are equal to one and the same thing , are equal to each other . 2. The whole is greater than its part .. 3. The whole is equal to all its parts . GEOMETRY . 35 %
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Συχνά εμφανιζόμενοι όροι και φράσεις
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