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 σελίδες |
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Αποτελέσματα 1 - 5 από τα 34.
Σελίδα 21
... . Having found the Logarithms of the three given Terms , add together the Log . of the second and third first Term , the Remainder will be the Log . Terms , and from their Sum subtract the Log . of the TRIGONOMETRY . 21.
... . Having found the Logarithms of the three given Terms , add together the Log . of the second and third first Term , the Remainder will be the Log . Terms , and from their Sum subtract the Log . of the TRIGONOMETRY . 21.
Σελίδα 22
... Subtracted by cancelling the first figure of the Sum of the other two Terms . Making the Leg AB Radius , the Proportions will be : To find the Leg AB . As Secant CAB , 35 ° 30 ′ : Hyp . AC , 25 :: Radius To find the Leg BC . As Secant ...
... Subtracted by cancelling the first figure of the Sum of the other two Terms . Making the Leg AB Radius , the Proportions will be : To find the Leg AB . As Secant CAB , 35 ° 30 ′ : Hyp . AC , 25 :: Radius To find the Leg BC . As Secant ...
Σελίδα 23
... subtracted according to the Rule , the result will be found to be the same as the twe first Proportions . By Natural Sines . This CASE may be solved by Natural Sines , * ac- cording to the following Proportions : As Unity or 1 ; Is to ...
... subtracted according to the Rule , the result will be found to be the same as the twe first Proportions . By Natural Sines . This CASE may be solved by Natural Sines , * ac- cording to the following Proportions : As Unity or 1 ; Is to ...
Σελίδα 23
... Subtracted by cancelling the first figure of the Sum of the other two Terms . Making the Leg AB Radius , the Proportions will be : To find the Leg AB . As Secant CAB , 35 ° 30 ′ : Hyp . AC , 25 :: Radius ་ To find the Leg BC . As Secant ...
... Subtracted by cancelling the first figure of the Sum of the other two Terms . Making the Leg AB Radius , the Proportions will be : To find the Leg AB . As Secant CAB , 35 ° 30 ′ : Hyp . AC , 25 :: Radius ་ To find the Leg BC . As Secant ...
Σελίδα 23
... subtracted according to the Rule , the result will be found to be the same as the two first Proportions . By Natural Sines . This CASE may be solved by Natural Sines , * ac- cording to the following Proportions : As Unity or 1 ; Is to ...
... subtracted according to the Rule , the result will be found to be the same as the two first Proportions . By Natural Sines . This CASE may be solved by Natural Sines , * ac- cording to the following Proportions : As Unity or 1 ; Is to ...
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A System of Geometry and Trigonometry: Together with a Treatise on Surveying ... Able Flint Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
A System of Geometry and Trigonometry: Together with a Treatise on Surveying ... Able Flint Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2017 |
Δημοφιλή αποσπάσματα
Σελίδα 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.
Σελίδα 23 - The square of the hypothenuse is equal to the sum of the squares of the other two sides ; as, 5033 402+302.
Σελίδα 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.
Σελίδα 25 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Σελίδα 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...
Σελίδα 8 - The radius of a circle is a line drawn from the centre to the circumference, as A, B.
Σελίδα 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.
Σελίδα 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.