## Trigonometry, Plane and Spherical: With the Construction and Application of Logarithms |

### Inni boken

Resultat 1-5 av 12

Side 3

11. The Co - tangent , and Co - secant , of an Arch are the Tangent , and Secant ,

of the Complement of that Arch . Thus HK and CK are the Cotangent and Co -

fecant of AB . 12. A Trigonometrical - Canon is a

the ...

11. The Co - tangent , and Co - secant , of an Arch are the Tangent , and Secant ,

of the Complement of that Arch . Thus HK and CK are the Cotangent and Co -

fecant of AB . 12. A Trigonometrical - Canon is a

**Table**exhibiting the Length ofthe ...

Side 4

THEOREM I. : ' In any right - angled plane Triangle ABC , it will be as the

Hypotkenuse is to the Perpendicular , jó is the Radius ( of the

of the Angle at the Bafe . 16 For , let A E or AF E be the Radius to which the

of ...

THEOREM I. : ' In any right - angled plane Triangle ABC , it will be as the

Hypotkenuse is to the Perpendicular , jó is the Radius ( of the

**Table**) to the Sineof the Angle at the Bafe . 16 For , let A E or AF E be the Radius to which the

**Table**of ...

Side 10

Having laid down the Method of resolving the different Cases of plane Triangles ,

by a

such a

Having laid down the Method of resolving the different Cases of plane Triangles ,

by a

**Table**of Sines and Tangents ; I shall here shew the Manner of constructingsuch a

**Table**( as the Foundation upon which the whole Doctrine is grounded ) ... Side 12

... their Sum , and Dy equal to Half their Difference . But , because of the similar

Triangles OCF , Omn and Dum , It will be SOC : On :: CF : mn 2 OC : Dm :: FO : Dv

} 2. E.D. COROLLARY L mn k ) = ( G • 2 3 Co3 12 Construction of the

... their Sum , and Dy equal to Half their Difference . But , because of the similar

Triangles OCF , Omn and Dum , It will be SOC : On :: CF : mn 2 OC : Dm :: FO : Dv

} 2. E.D. COROLLARY L mn k ) = ( G • 2 3 Co3 12 Construction of the

**Table**tang. Side 14

IV . To fhew the Manner of constructing the Trigonometrical Canon . First , find the

Sine of an Arch of one Minute , by the preceding Prop . and then its Co - sine , by

Prop . Prop . 1. which let be denoted by C ; 14 Construction of the

IV . To fhew the Manner of constructing the Trigonometrical Canon . First , find the

Sine of an Arch of one Minute , by the preceding Prop . and then its Co - sine , by

Prop . Prop . 1. which let be denoted by C ; 14 Construction of the

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Trigonometry, Plane and Spherical: With the Construction and Application of ... Thomas Simpson Uten tilgangsbegrensning - 1799 |

### Vanlige uttrykk og setninger

added alſo appears Arch Bafe balf Baſe becauſe Caſe Center Chord Circle Co-f Co-fine Co-ſine AC Co-tang common conſequently COROLLARY Demonſtration determine Diameter Difference drawn equal equal to Half evident Exceſs Extremes fame firſt follows Form gent given gives gles greater half the Difference Half the Sum Hence hyperbolic Logarithm Hypothenuſe Index laſt Logarithm manifeſt meeting Method Minute Moreover Note Number oppoſite parallel perpendicular plane Triangle ABC preceding Product Progreſſion PROP Proportion propoſed Radius Rectangle Remainder reſpectively right-angled ſame Secant ſecond ſee Series ſhall Sides ſince Sine Sine ACD Solution ſuppoſed Table Tang Tangent of Half Tbeor Terms Theor THEOREM thereof theſe thoſe Unity Value verſed Sine vertical Angle whence whoſe

### Populære avsnitt

Side 1 - 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 3 - Canon, is a table showing the length of the sine, tangent, and secant, to every degree and minute of the quadrant, with respect to the radius, which is expressed by unity or 1, with any number of ciphers.

Side 6 - In every plane triangle, it will be, as the sum of any two sides is to their difference...

Side 41 - 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 13 - If the sine of the mean of three equidifferent arcs' dius being unity) be multiplied into twice the cosine of the common difference, and the sine of either extreme be deducted from the product, the remainder will be the sine of the other extreme. (B.) The sine of any arc above 60°, is equal to the sine of another arc as much below 60°, together with the sine of its excess above 60°. Remark. From this latter proposition, the sines below 60° being known, those of arcs above 60° are determinable...

Side 31 - ... is the tangent of half the vertical angle to the tangent of the angle which the perpendicular CD makes with the line CF, bisecting the vertical angle.

Side 73 - BD, is to their Difference ; fo is the Tangent of half the Sum of the Angles BDC and BCD, to the Tangent of half their Difference.

Side 28 - As the sum of the sines of two unequal arches is to their difference, so is the tangent of half the sum of those arches to the tangent of half their difference : and as the sum...

Side 68 - In any right lined triangle, having two unequal sides ; as the less of those sides is to the greater, so is radius to the tangent of an angle ; and as radius is to the tangent of the excess of...