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

### Inni boken

Resultat 1-5 av 17

Side 4

... or Canon (

Arch EF ( Vid . Def . 3 . and 9. ) ; then , by reason of the Similarity of the Triangles

ABC , AFG , it will be , AB : BC :: AF : FG . 2. E. D. Note , In the Quotations where ...

... or Canon (

**see**the preceding Figure ) , and FG the Tangent of the Angle A , orArch EF ( Vid . Def . 3 . and 9. ) ; then , by reason of the Similarity of the Triangles

ABC , AFG , it will be , AB : BC :: AF : FG . 2. E. D. Note , In the Quotations where ...

Side 7

... to any two propos'd Sides ; the included Angle , and the Sides themselves ,

being known . gent of 2 2 2 2 As the lefser of the proposed Sides ( A b or A B ) is

to the greater ( AC ) , so is Radius to the Tangent of an Angle ( AbC ,

2. ) ...

... to any two propos'd Sides ; the included Angle , and the Sides themselves ,

being known . gent of 2 2 2 2 As the lefser of the proposed Sides ( A b or A B ) is

to the greater ( AC ) , so is Radius to the Tangent of an Angle ( AbC ,

**see**Theor ,2. ) ...

Side 10

1 1 Note , The 2d and 3d Cases are ambiguous , or admit of two different

Answers each , when the Side A B opposite the given Angle C (

lefs than the given Side BC , adjacent to it ( except the Angle found is exactly a

Right one ) ...

1 1 Note , The 2d and 3d Cases are ambiguous , or admit of two different

Answers each , when the Side A B opposite the given Angle C (

**see**Fig . 2. ) islefs than the given Side BC , adjacent to it ( except the Angle found is exactly a

Right one ) ...

Side 17

... according to the 2d and 3d Rules , the Sines of all the other intermediate

Arches are had , by Addition and Subtraction only .

000290 Sine 3 ° Ó ' , 000290 4915 Excess , of Sines , Tangents and Secants . 17.

... according to the 2d and 3d Rules , the Sines of all the other intermediate

Arches are had , by Addition and Subtraction only .

**See**the Operation 45 ll с ,000290 Sine 3 ° Ó ' , 000290 4915 Excess , of Sines , Tangents and Secants . 17.

Side 19

Method . In this Case , the two Extremes , being , 85940641 and , 86602540 ,

their Sum will be = 1,72543 , & c . and their Difference = 900661899 ; whereof the

former , multiplied by , 0000000423 (

or ...

Method . In this Case , the two Extremes , being , 85940641 and , 86602540 ,

their Sum will be = 1,72543 , & c . and their Difference = 900661899 ; whereof the

former , multiplied by , 0000000423 (

**see**the Rule ) gives , 00000007298 , & c .or ...

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

### Vanlige uttrykk og setninger

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### 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...