Original grey paper-covered boards, professionally rebacked with modern matching cloth spines with 2 original printed paper labels attached. Very competent typesetting, printing & cuts by W Glendinning (25 Hatton Garden, London). Condition: sturdy books, boards bumped, bruised & marked, very occasional spots of foxing, very occasional modern pencil notes & sidelining. Size: 8vo - over 7¾" - 9¾" tall. N° de ref. de la librería J3333
Título: The Mathematical Questions, Proposed in the ...
Editorial: J Mawman / J Deighton / J Parker
Año de publicación: 1817
Encuadernación: Hard Cover
Condición del libro: Good
Condición de la sobrecubierta: No Jacket
Edición: First Edition.
Descripción RareBooksClub. Paperback. Estado de conservación: New. This item is printed on demand. Paperback. 106 pages. Dimensions: 9.7in. x 7.4in. x 0.2in.This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1817 Excerpt: . . . Auderson. Let b--365 : the number of days in a year, a--the number of days wrought; then b--a the number of days played; therefore 7a--3b--3a per question. Whence a will be found: 109-5 days wrought; and 255-5 : the days played. Additional Solution. A, 10(73): 365: : f 7: -7 X 365 255-5, v 3: -3 X 365 109-5. H. in. Question 145, by Mr. Rob. Fearnside. Two ships A and n, lying west andeast of each other, are bound to a port D which could not be seen from their stations: The ship A takes her course between east and north leagues and then dis. covers the port D, directly to the north of herself and the place where she left B: The ship B proceeded directly east 12-8 leagues, and then despairing to find the port D lay to. The ship A continued her first course till she came within 5 leagues of D, when the two ships and the port were in the same right line. The angle formed at o N. B. The above method will find x to any degree of accuracy by only assuming n nearly to x, and even without that if the logarithm of a and n be made to a sufficient number of places. Remark. Though the above be a very complete and masterly solntion, the method of trial-and-error would sooner approximate t the value of the root. H. v. Question 147, by Mr. Tho. Williams. On the 9th of June 1731, there will happen a small eclipse of the moon. The centres of the moon and shadow at the beginning, and the centres of the moon and shadow at the middle of the eclipse, form a right-angled triangle, the sum of whose base and perpendicular will be 83 minutes, and the sum of the base and hypothenuse 116 minutes; and the diameter will exceed the perpendicular by 4 minutes. Required the diameter of the earths shadow and the diameter of the moon, and what part of the moon will be covered . . . This item ships from La Vergne,TN. Paperback. Nº de ref. de la librería 9781231481073
Descripción J Mawman, London, 1817. Hardcover. Estado de conservación: G+. First edition. 4 volumes contemporary leather spines marbled boards. Volume Spine label missing on volume 1. Spines a little rubbed. Nº de ref. de la librería 500037350