An essay for the discovery of some new geometrical problems : (judged by some learned men, impracticable) concerning angular sections, beginning with the geometrical trisection of any right lined angle, by plain geometry of right lines and arches of circles, with rule and compass only, with out all conick sections, and cubick æquations. Whether the following praxis, and apparent demonstration thereof doth not only make it practicable, but easie to the understanding of a tiro, who but understands a little in true geometrical learning. Which layeth a foundation of a plain method how to sect any angle into any other number of parts required, even as 4. 6. 8. 10; or uneven, as 5. 7. 9. 11. &c. As also to divide a circle into any number even, or uneven of equal parts. All which have great uses in the improvement of the mathematical sciences, some of which are here specified. Proposed and submitted to the impartial tryal and examination of the right reason of such artises, to whose hands it may come. By G.K.

Format:

Book

Author/Creator:

Keith, George, 1639?-1716.

Series:

Early English books online

Language:

English

Subjects (All):

Geometry--Early works to 1800.

Geometry.

Physical Description:

1 online resource (12 pages, 4 unnumbered leaves of plates) : illustrations

Place of Publication:

London : printed 1697. And to be sold by the author, at his house in Pudding-Lane, at the sign of he [sic] Golden-Ball, near the Monument; and by B. Aylmer at the Three Pigeons over against the Royal-Exchange, [1697]

System Details:

text file

Notes:

G.K. = George Keith.

Reproduction of the original in Dr. Williams' Library, London.

Electronic reproduction. Ann Arbor, Mich. : UMI, 1999- (Early English books online) Digital version of: (Early English books, 1641-1700 ; 2188:04) s1999 miun s

Cited in:

Wing (2nd edition) K160

Access Restriction:

Restricted for use by site license.