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 23.
Σελίδα 21
... C , then AB will be the Tangent and AC the Secant of the Angle at C ; that is , if one Leg be made Radius the other Leg will be a Tangent of its opposite Angle , and the Hypothenuse a Secant of the same An- gle . Thus , as different ...
... C , then AB will be the Tangent and AC the Secant of the Angle at C ; that is , if one Leg be made Radius the other Leg will be a Tangent of its opposite Angle , and the Hypothenuse a Secant of the same An- gle . Thus , as different ...
Σελίδα 22
... C 54 ° 30 ' : to find the Legs . Making the Hypothenuse 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 CAB , 35 ° 30 ′ : Hyp . AC , 25 ...
... C 54 ° 30 ' : to find the Legs . Making the Hypothenuse 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 CAB , 35 ° 30 ′ : Hyp . AC , 25 ...
Σελίδα 23
... C 54 ° 30 ' : to find the Legs . Making the Hypothenuse 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 CAB , 35 ° 30 ′ : Hyp . AC , 25 ...
... C 54 ° 30 ' : to find the Legs . Making the Hypothenuse 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 CAB , 35 ° 30 ′ : Hyp . AC , 25 ...
Σελίδα 148
... Secant , whichever is want- ed , and for the Minutes at the left hand ; but if more than 45 , look for the Degrees at the Bottom over Sine , & c ... c . To find the Degrees and Minutes corresponding to a given Logarithmic Sine , & c . Look in ...
... Secant , whichever is want- ed , and for the Minutes at the left hand ; but if more than 45 , look for the Degrees at the Bottom over Sine , & c ... c . To find the Degrees and Minutes corresponding to a given Logarithmic Sine , & c . Look in ...
Σελίδα 149
... Tangent 9.73597 . Given Log . 9.73597 Next greater Log . Next less · - 9.73476 ... Secant 10.32367 their Sum is 20.00000 ; so also is the Sum of the Co - Sine ... c . for any Course and Distance by Logarithms . This is done by the first ...
... Tangent 9.73597 . Given Log . 9.73597 Next greater Log . Next less · - 9.73476 ... Secant 10.32367 their Sum is 20.00000 ; so also is the Sum of the Co - Sine ... c . for any Course and Distance by Logarithms . This is done by the first ...
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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.