Trigonometry, Plane and Spherical: With the Construction and Application of LogarithmsF. Wingrove, 1799 - 79 sider |
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Resultat 1-5 av 7
Side 16
... half a degree ; whofe half , or , 004363312 , is therefore the fine of 15 ' , very nearly . I From whence the fine ... number of decimals be taken ; by which means you will get the chord of part of the femi - periphery to what accuracy ...
... half a degree ; whofe half , or , 004363312 , is therefore the fine of 15 ' , very nearly . I From whence the fine ... number of decimals be taken ; by which means you will get the chord of part of the femi - periphery to what accuracy ...
Side 17
... number ; which is fuffi- ciently exact for all common purposes . SCHOLIUM ... number of places , to render the nume- rous deductions from it but tolerably exact ( because in every operation ... half of Sines , Tangents , and Secants . 17 .
... number ; which is fuffi- ciently exact for all common purposes . SCHOLIUM ... number of places , to render the nume- rous deductions from it but tolerably exact ( because in every operation ... half of Sines , Tangents , and Secants . 17 .
Side 18
... half the fide of a decagon- inscribed in the circle ) let the co - fine of 3 ° , the difference between 18 ° and 15 ... number ( which is fufficient to give the value of an angle to seconds , and even to thirds , in moft cafes ) then the ...
... half the fide of a decagon- inscribed in the circle ) let the co - fine of 3 ° , the difference between 18 ° and 15 ... number ( which is fufficient to give the value of an angle to seconds , and even to thirds , in moft cafes ) then the ...
Side 30
... sum of the fines of two unequal arches is to their difference , fo is the tangent of half the fum of thofe arches to the tangent of half their difference : and , as the fum of the co - fines is to their difference , fo is the co ...
... sum of the fines of two unequal arches is to their difference , fo is the tangent of half the fum of thofe arches to the tangent of half their difference : and , as the fum of the co - fines is to their difference , fo is the co ...
Side 43
... half of the terms will be intirely destroyed thereby . There- fore , because the fum of the logarithms of any two ... number ( N ) , will have a lefs value . ' But But now , to determine what this value muft be Conftruction of Logarithms ...
... half of the terms will be intirely destroyed thereby . There- fore , because the fum of the logarithms of any two ... number ( N ) , will have a lefs value . ' But But now , to determine what this value muft be Conftruction of Logarithms ...
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Trigonometry, Plane and Spherical: With the Construction and Application of ... Thomas Simpson Uten tilgangsbegrensning - 1810 |
Trigonometry, Plane and Spherical: With the Construction and Application of ... Thomas Simpson Uten tilgangsbegrensning - 1810 |
Vanlige uttrykk og setninger
4th rem ABC+ACB AC by Theor AC-BC AC+BC adjacent angle AF-co-f alfo alfo known alſo angle ACB bafe baſe becauſe bifecting cafe chord circle co-fecant co-fine AC co-tangent of half common logarithm confequently COROL COROLLARY diameter dius E. D. PROP equal to half excefs faid fame fecant fecond feries fhall fides AC fimilar triangles fines firft firſt fquare fupplement fuppofed garithms gles great-circles half the difference half the fum half the vertical Hence hyperbolic logarithm interfect itſelf laft laſt leffer leg BC likewife LUKE HANSARD moreover oppofite angle pendicular periphery perpendicular plane triangle ABC progreffion propofed proportion radius co-fine refpectively right-angled Spherical triangle right-line ſhall ſpherical triangles ABC tang tangent of half THEOREM theſe thofe thoſe Trigonometry verfed vertical angle whence whofe
Populære avsnitt
Side 3 - The circumference of every circle is supposed to be divided into 360 equal parts, called degrees; and each degree into 60 minutes, each minute into 60 seconds, and so on.
Side 30 - U to their difference, fo is the tangent of half the fum of thofe arches, to the tangent of half their difference; and, As the fum of the...
Side 4 - The fine, or right-fine, of an arch, is a right line drawn from one extremity of the arch, perpendicular to the diameter paffing through the other extremity. Thus BF is the fine of the arch AB or DB.
Side 33 - ... fo is the tangent of half the vertical angle, to the tangent of the angle which the perpendicular CD makes with the line CF, bifcding the vertical The Solution of the Cafes of righl-angled fpfierical Triangles, (Fig.
Side 33 - ABC, it will be, as the co -tangent of half the fum of the angles at the bafe, is to the tangent of half their difference, fo is the tangent of half the...
Side 43 - JJ/xJV; hence, The sum of the logarithms of any two numbers is equal to the logarithm of their product. Therefore, the addition of logarithms corresponds to the multiplication of their numbers.
Side 5 - BI, the sine of its complement HB. The tangent of an arc, is a right line touching the circle in one extremity of that arc, continued from thence to meet a line drawn from the centre through the other extremity ; which line is called the secant of the same arc : thus AG is the Ungent, and CG the secant of the arc AB.
Side 4 - A chord, or fubtenfe, is a right line drawn from one extremity of an arch to the other ; thus B £ is the chord or fubterife of the arch BAE, orBDE.
Side 13 - The straight line BE between the centre and the extremity of the tangent AE, is called the Secant of the arch AC, or of the angle ABC. COR. to def.