A System of Geometry and Trigonometry: Together with a Treatise on Surveying: Teaching Various Ways of Taking the Survey of a Field; Also to Protract the Same and Fine the Area. Likewise, Rectangular Surveying; Or, an Accurate Method of Calculating the Area of Any Field Arithmetically, Without the Necessity of Plotting It. To the Whole are Added Several Mathematical Tables ... with a Particular Explanation ... and the Manner of Using Them ...O. D. Cooke, 1813 - 168 páginas |
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Página 21
... look the corres- ponding Logarithms , in the Logarithms for Numbers . for the length of the Sides , and in the Table of Artifi- cial Sines , Tangents and Secants , for the Logarithmic Sine , Tangent or Secant . Having found the ...
... look the corres- ponding Logarithms , in the Logarithms for Numbers . for the length of the Sides , and in the Table of Artifi- cial Sines , Tangents and Secants , for the Logarithmic Sine , Tangent or Secant . Having found the ...
Página 81
... look for it at the Top , but if more than 45 ° at the Bottom of the Page ; and look for the Distance in the Right or Left hand Column : Against the Distance , and directly under or over the Course , stand the Northing , & c . in whole ...
... look for it at the Top , but if more than 45 ° at the Bottom of the Page ; and look for the Distance in the Right or Left hand Column : Against the Distance , and directly under or over the Course , stand the Northing , & c . in whole ...
Página 128
... look for them at the Top of the Columns , and for the Minutes at the left hand ; but if more than 45 , look for them at the Bottom , and for the Minutes at the Right hand ; under or over the Degrees and against the Min- utes will be the ...
... look for them at the Top of the Columns , and for the Minutes at the left hand ; but if more than 45 , look for them at the Bottom , and for the Minutes at the Right hand ; under or over the Degrees and against the Min- utes will be the ...
Página 145
... Look for the two first figures in the Left or Right hand Col- umn , marked No. and for the third figure on the Top of the Page ; against the two first figures and under the third will be the Logarithm . EXAMPLES . Required the Logarithm ...
... Look for the two first figures in the Left or Right hand Col- umn , marked No. and for the third figure on the Top of the Page ; against the two first figures and under the third will be the Logarithm . EXAMPLES . Required the Logarithm ...
Página 145
... Look for the two first figures in the Left or Right hand Col- umn , marked No. and for the third figure on the Top of the Page ; against the two first figures and under the third will be the Logarithm . EXAMPLES . Required the Logarithm ...
... Look for the two first figures in the Left or Right hand Col- umn , marked No. and for the third figure on the Top of the Page ; against the two first figures and under the third will be the Logarithm . EXAMPLES . Required the Logarithm ...
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A System of Geometry and Trigonometry: Together with a Treatise on Surveying ... Able Flint Sin vista previa disponible - 2017 |
A System of Geometry and Trigonometry: Together with a Treatise on Surveying ... Able Flint Sin vista previa disponible - 2017 |
Pasajes populares
Página 26 - 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.
Página 23 - The square of the hypothenuse is equal to the sum of the squares of the other two sides ; as, 5033 402+302.
Página 8 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, &c.
Página 25 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Página 25 - The solution of this CASE depends on the following PROPOSITION. In every Plane Triangle, As the Sum of any two Sides ; Is to their Difference ; So is the Tangent of half the Sum of the two opposite Angles ; To the Tangent of half the Difference between them. Add this half difference to half the Sum of the Angles and you will have the greater Angle ; and...
Página 8 - The radius of a circle is a line drawn from the centre to the circumference, as A, B.
Página 40 - Field work and protraction are truly taken and performed ; if not, an error must have been committed in one of them : In such cases make a second protraction ; if this agrees with the former, it is to be presumed the fault is in the Field work ; a re-survey must then be taken.
Página 40 - Let his attention first be directed to the map, and inform him that the top is north, the bottom south, the right hand east, and the left hand west.