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 10.
Σελίδα 20
... accurately by calculation with Logarithms , or with Natural Sines . TRIGONOMETRY is divided into two Parts , Rectan- gular and Oblique - angular . PART I. RECTANGULAR TRIGONOMETRY . This is founded on the following methods of apply- ing ...
... accurately by calculation with Logarithms , or with Natural Sines . TRIGONOMETRY is divided into two Parts , Rectan- gular and Oblique - angular . PART I. RECTANGULAR TRIGONOMETRY . This is founded on the following methods of apply- ing ...
Σελίδα 35
... is the case with a great part of the Land in New - England , it is better to use a Chain of only two Rods in length ; SECTION I. PRELIMINARY PROBLEMS . PROBLEM I. To reduce Two as the Survey can be more accurately taken . SURVEYING. ...
... is the case with a great part of the Land in New - England , it is better to use a Chain of only two Rods in length ; SECTION I. PRELIMINARY PROBLEMS . PROBLEM I. To reduce Two as the Survey can be more accurately taken . SURVEYING. ...
Σελίδα 42
... accurately taken . To effect this , the lower end of the Chain must be rais- ed from the ground , so as to have the whole in a hor- izontal Line ; and the end thus raised must be directly over the Point where the Chain begins or ends ...
... accurately taken . To effect this , the lower end of the Chain must be rais- ed from the ground , so as to have the whole in a hor- izontal Line ; and the end thus raised must be directly over the Point where the Chain begins or ends ...
Σελίδα 45
... accurately in the first place . Other methods of taking the Survey of a Field , by the Chain only are mentioned in some Treatises on this subject , but they are rather curious than useful ; and it is much better to ascertain the Angles ...
... accurately in the first place . Other methods of taking the Survey of a Field , by the Chain only are mentioned in some Treatises on this subject , but they are rather curious than useful ; and it is much better to ascertain the Angles ...
Σελίδα 50
... accurately taken . By the RULES for protracting a Field , Page 48 , find the Quantity of the several Angles , and add the whole together ; to their Sum add 360 ° ; divide this Sum by 180 ° ; and , if the Survey is right , the Quotient ...
... accurately taken . By the RULES for protracting a Field , Page 48 , find the Quantity of the several Angles , and add the whole together ; to their Sum add 360 ° ; divide this Sum by 180 ° ; and , if the Survey is right , the Quotient ...
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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.