A Treatise on Surveying, Containing the Theory and Practice: To which is Prefixed a Perspicuous System of Plane Trigonometry. The Whole Clearly Demonstrated and Illustrated by a Large Number of Appropriate Examples. Particularly Adapted to the Use of SchoolsJ. Richardson, 1817 - 206 páginas |
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Página 8
... multiplication . ............... division . proportion . equality . square root . ............. difference between two quantities when it is not known which is the greater . OF LOGARITHMS . LOGARITHMS are a series of numbers so.
... multiplication . ............... division . proportion . equality . square root . ............. difference between two quantities when it is not known which is the greater . OF LOGARITHMS . LOGARITHMS are a series of numbers so.
Página 9
... division by subtraction . If a series of numbers in arithmetical progression be placed as indices or exponents , to a series of numbers in geometrical progression , the sum or difference of any two of the former , will answer to the ...
... division by subtraction . If a series of numbers in arithmetical progression be placed as indices or exponents , to a series of numbers in geometrical progression , the sum or difference of any two of the former , will answer to the ...
Página 23
... division in the usual manner . EXAMPLES . 1. Required the cube root of 391.27 . 3 ) Logarithm of 391.27 is 2.59248 Cube root 7.314 0.86416 2. Required the square root of .08593 . Logarithm of .08593 Square root .29314 2 ) is 2.93414 ...
... division in the usual manner . EXAMPLES . 1. Required the cube root of 391.27 . 3 ) Logarithm of 391.27 is 2.59248 Cube root 7.314 0.86416 2. Required the square root of .08593 . Logarithm of .08593 Square root .29314 2 ) is 2.93414 ...
Página 33
... division on the line E B , draw diagonals to the points of division on the line F C : thus join E and the first divi- sion on FC , the first division on E B and the second on F C , & c . Note . - Diagonal scales serve to take off ...
... division on the line E B , draw diagonals to the points of division on the line F C : thus join E and the first divi- sion on FC , the first division on E B and the second on F C , & c . Note . - Diagonal scales serve to take off ...
Página 37
... division 10 , 20 , 30 , & c . draw lines parallel to CB , and meeting CD in 10 , 20 , 30 , & c . and CD will be a line of sines . From the centre C , through the divisions of the are BD , draw lines meeting BE , in 10 , 20 , 30 , & c ...
... division 10 , 20 , 30 , & c . draw lines parallel to CB , and meeting CD in 10 , 20 , 30 , & c . and CD will be a line of sines . From the centre C , through the divisions of the are BD , draw lines meeting BE , in 10 , 20 , 30 , & c ...
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Términos y frases comunes
ABCD ABFD acres adjacent adjacent angles angle ABC angle opposite angled triangle base bearing and distance breadth Calculation centre Co-secant Secant Co-sine Co-tang column contained decimal degrees DEMONSTRATION departure corresponding diff difference of latitude Dist divide division line draw equal EXAMPLES feet field-notes figures find the angle find the area four-pole chains fourth term given angle given area given bearing given number given ratio given side John Gummere Lat Dep latitude and departure length logarithm measured meridian distance natural number off-sets parallel parallelogram perches perpendicular quired quotient radius rectangle remainder Required the area right angles right line right-angled triangle ROBERT ADRAIN RULE semicircle semiperimeter side AB side AC sine square root station stationary line subtract tance Tang Tangent tract of land trapezium trapezoid triangle ABC trigonometry
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Página 2 - District, has deposited in this office the title of a book, the right whereof he claims as proprietor, in the words following, to wit : " THE CHILD'S BOTANY," In conformity to the act of the Congress of the United States, entitled, " An act for the encouragement of learning by securing the copies of maps, charts, and books to the authors and proprietors of such copies, during the times therein mentioned...
Página 35 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds.
Página 44 - The angle at the centre of a circle is double of the angle at the circumference upon the same base, that is, upon the same part of the circumference.
Página 53 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Página 26 - A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line.
Página 79 - A maypole, whose top was broken off by a blast of wind, struck the ground at 15 feet distance from the foot of the pole: what was the height of the whole maypole, supposing the broken piece to measure 39 feet in length ? Ans.
Página 29 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Página 36 - Sine, or Right Sine, of an arc, is the line drawn from one extremity of the arc, perpendicular to the diameter which passes through the other extremity. Thus, BF is the sine of the arc AB, or of the supplemental arc BDE.
Página 92 - To find the Area of a Triangle when the Three Sides are given. Rule. — From half the sum of the three sides subtract each side separately.
Página 26 - A plane superficies is that in which any two points being taken, the straight line between them lies wholly in that superficies. 8. A plane angle is the inclination of two lines to one another in a plane, which meet together, but are not in the same direction.