Five Figure Tables Mathematical Functions by Dale John Borthwick (4 results)

Cloth Boards. Condition: Very Good [+]. Ninth [9th] Impression. Burgundy hardback with gilt titling. Pp xv, 92 + 8 pages publisher's scientific and technical list. A square, tight, clean copy with only very light extremity bump and bright gilt; previous owner's name in sepia ink to blank endpaper:- 'H.J. Dickinson. Wallis Wood, Oakley, Surrey'. All contents bright and clean with no marks, annotations etc. and the book appears little used. Image/further information available upon request.

Hardcover. Condition: Good. xvi, 92pp. Brown cloth-covered boards; gilt design on front, gilt titles on spine. 8vo. Sun-faded spine, loss to spine ends, wear and staining to boards. Top text block edge dusty, remaining edges starting to tan and fox. Previous owner's details on front pastedown. Internally neat, clean, bright and tight.

8vo (145 × 220 mm). 60 ff. Publisher's plum cloth, upper cover and spine titled in gilt. A working copy of Dale's standard compendium of logarithmic and trigonometric tables, owned and signed by Alan Turing during his years at King's College, Cambridge. This tenth impression (preface dated December 1930) gathers logarithms, powers of numbers, and trigonometric, elliptic, and other transcendental functions, tools indispensable for numerical analysis before the advent of electronic computation.The presence of such a volume in Turing's mathematical library directly reflects his grounding in manual calculation methods that preceded his theoretical formulation of machine computation. - These tables, designed for precision by interpolation, represent the practical side of the mathematical culture from which Turing's "On Computable Numbers" (1936) abstracted its central insight: the mechanisation of calculation itself. - Well preserved with mild toning and occasional faint spotting on the paper. Binding firm, inner hinges intact, gilt titles slightly dulled. In excellent condition. - Alan Mathison Turing (1912-1954), with his signature and inscription "King's College" on front free endpaper; Robin Gandy (1919-1995), Turing's friend and one of his executors; bequeathed to Wolfson College. A Fellow of Wolfson from 1970 until his death in 1995, Gandy generously left his entire estate to the College, including this book once owned by Alan Turing, with the wish that his legacy be used to benefit the College and its students. Deaccessioned to fund student support (Turing-Gandy bursary initiative).

8vo. 92 pp. Publisher's cloth, soiled. Tenth impression of Dale's Five-figure Tables of Mathematical Functions", signed ("Alan M. Turing | King's College.") on the front free endpaper.Soon after Turing's arrival in Cambridge he had "settled upon mathematics rather than science as his future course at Cambridge. Very early he acquired Dale's Five-figure Tables of Mathematical Functions.The book was purchased and read during Turing's time as an undergraduate at King's College, Cambridge from 1931. Provenance: Alan Turing (1912-1954); Robin Gandy (1919-1995), Turing's friend and one of his executors; bequeathed to Wolfson College. A Fellow of Wolfson from 1970 until his death in 1995, Gandy generously left his entire estate to the College, including these books once owned by Alan Turing, with the wish that his legacy be used to benefit the College and its students.