A Treatise of Practical Surveying, ...1808 - 440 páginas |
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... decimal fractions , the square root , geometrical de- finitions , some necessary theorems and prob- lems ; with the nature and use of the tables of logarithm numbers , sines , sines , tangents , and secants . The second section contains ...
... decimal fractions , the square root , geometrical de- finitions , some necessary theorems and prob- lems ; with the nature and use of the tables of logarithm numbers , sines , sines , tangents , and secants . The second section contains ...
Página
... that is too long or too short the method of dividing lands : And the whole concludes with some necessa- ry directions and remarks on surveys in general . PRINCIPLES OF SURVEYING . SECT . I. Containing Decimal Fractions THE viii PREFACE .
... that is too long or too short the method of dividing lands : And the whole concludes with some necessa- ry directions and remarks on surveys in general . PRINCIPLES OF SURVEYING . SECT . I. Containing Decimal Fractions THE viii PREFACE .
Página 1
... DECIMAL FRACTIONS . If we suppose unity , or any one thing to be di- vided into any assigned number of equal parts , this number is called the denominator ; and if we chuse to take any number of such parts less than the whole , this is ...
... DECIMAL FRACTIONS . If we suppose unity , or any one thing to be di- vided into any assigned number of equal parts , this number is called the denominator ; and if we chuse to take any number of such parts less than the whole , this is ...
Página 2
... decimal frac- tions ; the numerators of which are written without their denominators , and are distinguished from inte- gers by a point prefixed : thus and in the decimal form , are expressed by .2 .42 .172 30 1OO 20 1000 4 2 172 1000 ...
... decimal frac- tions ; the numerators of which are written without their denominators , and are distinguished from inte- gers by a point prefixed : thus and in the decimal form , are expressed by .2 .42 .172 30 1OO 20 1000 4 2 172 1000 ...
Página 3
... decimal arithmetic , the value of any figure or number of figures , decreases , and becomes ten , or a hundred , or ... decimal fraction , has no effect in changing their values , Integers . Decimals . 1 2 7 1 6 3 5 1 2 3 6 7 • Tens ...
... decimal arithmetic , the value of any figure or number of figures , decreases , and becomes ten , or a hundred , or ... decimal fraction , has no effect in changing their values , Integers . Decimals . 1 2 7 1 6 3 5 1 2 3 6 7 • Tens ...
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Términos y frases comunes
40 perches ABCD acres altitude Answer base bearing blank line centre chains and links chord circle circumferentor Co-fecant Secant Co-fine Co-tang column contained cyphers decimal decimal fraction diameter difference Dift Diſt distance line divided draw drawn east edge EXAMPLE feet field-book figures fore four-pole chains half the sum height hypothenuse inches instrument latitude logarithm measure meridian distance method multiplied needle number of degrees object off-sets parallel parallelogram perpendicular piece of ground plane Plate pole Portmarnock PROB protractor quotient radius right angles right line scale of equal second station sect semicircle side sights sine square root stationary distance stationary line sun's survey taken tangent thence theo theodolite thro trapezium triangle ABC trigonometry true amplitude two-pole chains vane variation Vulgar Fraction whence ΙΟ
Pasajes populares
Página 32 - 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 199 - ... that triangles on the same base and between the same parallels are equal...
Página 94 - C' (89) (90) (91) (92) (93) 112. In any plane triangle, the sum of any two sides is to their difference as the tangent of half the sum of the opposite angles is to the tangent of half their difference.
Página 23 - Four quantities are said to be in proportion when the product of the extremes is equal to that of the means : thus if A multiplied by D, be equal to B multiplied by C, then A is said to be to B as C is to D.
Página 95 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Página 37 - ABDE+ACGF the sum of the squares —BKLH-\-KCML, the sum of the two parallelograms or square BCMH; therefore the sum of the squares on AB and AC is equal to the square on BC.
Página 24 - Things that are equal to one and the same thing, are equal to each other. 2. Every whole is greater than its part. % 3. Every whole is equal to all its parts taken together. 4 If to equal things, equal things be added, the whole will be equal. 5. If from equal things, equal things be deducted the remainders will be equal.
Página 36 - XIII. •All parallelograms on the same or equal bases and between the same parallels...
Página 182 - VI. To find the content of a triangular piece of ground, Multiply the base by half the perpendicular, or the perpendicular by half the base ; or take half the product of the base into the perpendicular. The reason hereof is plain, from cor.
Página 35 - Triangles upon equal bases, and between the same parallels, are equal to one another.