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Trigonometry, Plane and Spherical: With the Construction and Application of ...
Uten tilgangsbegrensning - 1748
Trigonometry: Plane and Spherical; with the Construction and Application of ...
Uten tilgangsbegrensning - 1799
Trigonometry, Plane and Spherical;: With the Construction and ..., Volum 2
Uten tilgangsbegrensning - 1765
ABDP base bisecting centre chord circle passing co-s co-sine AC co-tangent of half common logarithm common section Comp COROLL COROLLARY describe the circle equal to half extremes gent given angle given circle given point half the difference half the sum half the vertical Hence hyperbolic logarithm inclination intersect less circle line of measures original circle parallel perpendicular plane of projection plane triangle ABC primitive PROB produced projected circle projected pole projecting point PROP radius rectangle right angles right line right-angled spherical triangle SCHOLIUM secant semi-tangents sides AC similar triangles sine 59 sine of half sphere spherical angle spherical triangle ABC SPHERICAL TRIGONOMETRY sum or difference tang tangent of half THEOREM triangle ABC fig TRIGONOMETRY versed sine vertical angle whence x co-s
Side 2 - 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 time* therein mentioned," and extending the benefits thereof to the arts of designing, engraving, and etching historical and other prints.
Side 2 - Co. of the said district, have deposited in this office the title of a book, the right whereof they claim as proprietors, in the words following, to wit : " Tadeuskund, the Last King of the Lenape. An Historical Tale." In conformity to the Act of the Congress of the United States...
Side 9 - Plane Triangle, As the Sum of any two Sides ; Is to their Difference ; So is the Tangent of half the Sum of the two opposite Angles ; To the Tangent of half the Difference between them.
Side 5 - 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, &c.
Side 7 - 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 32 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
Side 38 - In a right angled spherical triangle, the rectangle under the radius and the sine of the middle part, is equal to the rectangle under the tangents of the adjacent parts ; or', to the rectangle under the cosines of the opposite parts.
Side 89 - ... projection is that of a meridian, or one parallel thereto, and the point of sight is assumed at an infinite distance on a line normal to the plane of projection and passing through the center of the sphere. A circle which is parallel to the plane of projection is projected into an equal circle, a circle perpendicular to the plane of projection is projected into a right line equal in length to the diameter of the projected circle; a circle in any other position is projected into an ellipse, whose...
Side 48 - 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.