A Complete Treatise on Practical Mathematics: Including the Nature and Use of Mathematical Instruments: Logarithmic Tables, Trigonometry, Mensuration of Heights and Distances,--of Surfaces & Solids, Land Surveying, Gunnery, Gauging, Artificer's Measuring, Miscellaneous Exercises. With an Appendix on Algebra ... Principally Designed for the Use of Schools and AcademiesBell and Bradfute, 1792 - 431 Seiten |
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Seite v
... less been felt by those who have undertaken the charge of teaching , than by their pupils . Ir must be very difagreeable to a teacher , before he can lead a clafs through a courfe of Practical Geo- metry , to make the ftudents purchase ...
... less been felt by those who have undertaken the charge of teaching , than by their pupils . Ir must be very difagreeable to a teacher , before he can lead a clafs through a courfe of Practical Geo- metry , to make the ftudents purchase ...
Seite 22
... less than 100 , its logarithm is found in the first page . If it exceed 100 , and is lefs than 1000 , the number is found in the left hand column , marked No. and its logarithm is found oppofite to it in the adjacent column , under o ...
... less than 100 , its logarithm is found in the first page . If it exceed 100 , and is lefs than 1000 , the number is found in the left hand column , marked No. and its logarithm is found oppofite to it in the adjacent column , under o ...
Seite 26
... less than 45 ° , seek the de- grees on the top , and the minutes in the left hand column titled M , in the fame line under the propofed name at the top , ftands the fine , tangent and fecant required . If the degrees given , exceed 45 ...
... less than 45 ° , seek the de- grees on the top , and the minutes in the left hand column titled M , in the fame line under the propofed name at the top , ftands the fine , tangent and fecant required . If the degrees given , exceed 45 ...
Seite 56
... less than in the latitude of Paris , which ⚫ confirms the oblate figure of the earth . Hence it appears , that if the earth were of an uniform denfity from the surface to the centre , then according to the theory of gravity , the me ...
... less than in the latitude of Paris , which ⚫ confirms the oblate figure of the earth . Hence it appears , that if the earth were of an uniform denfity from the surface to the centre , then according to the theory of gravity , the me ...
Seite 160
... less than a femicircle . RULE 2. Multiply the chord of half the arch by 1 , to the product add the chord of the whole arch , multiply this fum by the versed fine , and of the product will be the area of the fegment . EXAMPLE I. XAMPL ...
... less than a femicircle . RULE 2. Multiply the chord of half the arch by 1 , to the product add the chord of the whole arch , multiply this fum by the versed fine , and of the product will be the area of the fegment . EXAMPLE I. XAMPL ...
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Häufige Begriffe und Wortgruppen
abfciffa acres againſt alfo alſo altitude amplitude axis bafe baſe becauſe breadth centre chain chord of half circle circumference Co-fec Co-tan column cone conjugate cube defcribe dift diſtance divide divifor elevation Engliſh equal Euclid EXAMPLE fame fecond fegment fhall fimilar find the area find the folidity firſt fquare root fquare yards fruftum ftraight line fubtract fuch fuperficies furface girt given greateſt half the arch height horizontal houſe hypothenufe inftrument laft acquired velocity laſt lefs logarithm malt bufhels meaſure obferved off-fets oppofite ordinate parabolic perpendicular plane Plate quantity quotient rectangle Required the area Required the content Required the folidity rhombus right angles RULE Secant Secant Co-fec ſpace ſphere ſpindle ſquare ſteeple Suppofe tangent theodolite theſe thickneſs tranfverfe trapezium triangle triangular uſed verfed whofe diameter whofe fide whofe length whoſe wine gallons
Beliebte Passagen
Seite 27 - 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, etc.
Seite 115 - Therefore all the angles of the figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Seite 3 - A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.
Seite 232 - E, is equal to twice as many right angles as the figure has sides, less four right angles.
Seite 1 - ... common to the two triangles AFE, BFE, there are two sides in the one equal to two sides in the other, each to each ; and the base EA is equal to the base EB ; (i.
Seite 38 - BG; that is, the fum of the fides is to their difference, as the tangent of half the fum of the angles at the bafe to the tangent of half their difference.
Seite 372 - Subtract the square number from the left hand period, and to the remainder bring down the next period for a dividend. III. Double the root already found for a divisor ; seek how many times the divisor is contained...
Seite 38 - AB the greater side for a distance, let a circle be described, meeting AC, produced in E, F, and BC in D; join DA, EB, FB; and draw FG parallel to BC, meeting EB in G. The angle EAB (32.
Seite 38 - ACB (32. 1.) is equal to the angles CAD and ADC, or ABC together ; therefore FAD is the difference of the angles at the...
Seite 395 - TO divide a given ftraight line into two parts, fo that the rectangle contained by the whale, and one of the parts, fhall be equal to the fquare of the other part. Let AB be the given ftraight line; it is required to divide it into two parts, fo that the rectangle contained by the whole, and one of the parts, fhall be equal to the fquare of the other part. Upon AB...