every problem from the proof-sheets, so that I hope and believe that no mistakes will be found to have escaped me. It would be mere tautology to enter into further details here. One remark, however, as to what the work does not, and does not profess to, include may not be out of place. No treatment of Diophantos could be complete without a thorough revision of the text. I have, however, only cursorily inspected one MS. of my author, that in the Bodleian Library, which unfortunately contains no more than a small part of the first of the six Books. The best MSS. are in Paris and Rome, and I regret that I have had as yet no opportunity of consulting them. Though this would be a serious drawback were I editing the text, no collation of MSS. could affect my exposition of Diophantos' methods, or the solutions of his problems, to any appreciable extent; and, further, it is more than doubtful, in view of the unsatisfactory results of the collation of three of the MSS. by three different scholars in the case of one, and that the most important, of the few obscure passages which need to be cleared up, whether the text in these places could ever be certainly settled. I should be ungrateful indeed if I did not gladly embrace this opportunity of acknowledging the encouragement which I have received from Mr J. W. L. Glaisher, Fellow and Tutor of Trinity College, to whose prospective interest in the work before it was begun, and unvarying kindness while it was proceeding, I can now thankfully look back as having been in a great degree the "moving cause" of the whole. And, finally, I wish to thank the Syndics of the University Press for their liberality in undertaking to publish the volume. 11 May, 1885. T. L. HEATH. LIST OF BOOKS OR PAPERS READ OR REFERRED TO, SO FAR AS THEY CONCERN OR ARE USEFUL TO THE SUBJECT. 1. Books directly upon Diophantos. XYLANDER, Diophanti Alexandrini Rerum Arithmeticarum Libri sex...... Item Liber de Numeris Polygonis. Opus incomparabile......Latine redditum et Commentariis explanatum...... Basileae, 1575. BACHET, Diophanti Alexandrini Arithmeticorum Libri sex, et de numeris multangulis liber unus. Lutetiae Parisiorum, 1621. Diophanti Alexandrini Arithmeticorum libri sex, et de numeris multangulis liber unus. Cum commentariis C. G. BACHETI V.C. et obseruationibus D. P. de FERMAT Senatoris Tolosani. Tolosae, 1670. SCHULZ, Diophantus von Alexandria arithmetische Aufgaben nebst dessen Schrift über die Polygon-zahlen. Aus dem Griechischen übersetzt und mit Anmerkungen begleitet. Berlin, 1822. POSELGER, Diophantus von Alexandrien über die Polygon-Zahlen. Uebersetzt, mit Zusätzen. Leipzig, 1810. CRIVELLI, Elementi di Fisica......ed i Problemi arithmetici di Diofanto P. GLIMSTEDT, Första Boken af Diophanti Arithmetica algebraisk Oefversättning. Lund, 1855. STEVIN and GIRARD, "Translation" in Les Oeuvres mathématiques de Simon Stevin. Leyde, 1684. 2. Works indirectly elucidating Diophantos. BOMBELLI, L'Algebra......diuisa in tre Libri...... FERMAT, Opera Varia mathematica. métique de Diophante. Bologna, 1579. Tolosae, 1679. BRASSINNE, Précis des Oeuvres mathématiques de P. Fermat et de l'Arith Paris, 1853. COSSALI, Origine, trasporto in Italia, primi progressi in essa dell' Algebra 3. Books which mention or give information about Diophantos, including histories of mathematics. COLEBROOKE, Algebra with Arithmetic and Mensuration from the Sanscrit of Brahmagupta and Bháscara. SUIDAS, Lexicon (ed. G. Bernhardy). FABRICIUS, Bibliotheca Graeca (ed. Harless). London, 1817. Halis et Brunsvigae, 1853. ABULFARAJ, History of the Dynasties (tr. Pococke). CH. TH. V. MURR, Memorabilia Bibliothecarum publicarum Norimbergensium et Universitatis Altdorfinae. Oxon. 1663. Norimbergae, 1786. (Nürnberg, 1730.) DOPPELMAYR, Historische Nachricht von den Nürnbergischen Mathematicis und Künstlern. VOSSIUS, De universae mathesios natura et constitutione...... Leipzig, 1874. HANKEL, Zur Geschichte der Mathematik in Alterthum und Mittelalter. CANTOR, Vorlesungen über Geschichte der Mathematik, Band I. Leipzig, 1880. Dr HEINRICH SUTER, Gesch. d. Mathematischen Wissenschaften. Zürich, 1873. JAMES GOW, A short History of Greek Mathematics. Camb. Univ. Press, 1884. 4. Papers or Pamphlets read in connection with Diophantos. POSELGER, Beiträge zur Unbestimmten Analysis. (Berlin Abhandlungen, 1832.) L. RODET, L'Algèbre d'Al-Khārizmi et les methodes indienne et grecque. (Journal Asiatique, Janvier, 1878.) WOEPCKE, Extrait du Fakhri, traité d'Algèbre par Aboú Bekr Mohammed ben Alhaçan Alkarkhi, précédé d'un memoire sur l'algèbre indéterminée chez les Arabes. WOEPCKE, Mathématiques chez les Orientaux. Paris, 1853. 1. Journal Asiatique, Février-Mars, 1855. 2. Journal Asiatique, Avril, 1855. P. TANNERY, “À quelque époque vivait Diophante?" (Bulletin des Sciences Mathém. et Astronom. 1879.) P. TANNERY, L'Arithmétique dans Pappus...... (Bordeaux Memoirs, 1880.) London, 1831. Hauniae, 1879. THE WORKS OF DIOPHANTOS; THEIR TITLES AND GENERAL § 1. Titles: no real evidence that 13 books of Arithmetics ever existed No trace of lost books to be restored from Arabia. Corruption Porisms lost before 10th cent. A.D. . 18-23 § 2. What portion of the Arithmetics is lost? The contents of the Other views of the contents of the lost Books Porisms may have 23-26 26 26-35 35-37 37 § 4. Objection that Diophantos loses generality by the want of 69 . Other questions of notation: operations, fractions, &c. 69-76 § 5. General remarks on the historical development of algebraic § 6. On the influence of Diophantos' notation on his work 76-80 CHAPTER V. DIOPHANTOS' METHODS OF SOLUTION. § 1. General remarks. Criticism of the positions of Hankel and (A) Determinate equations of different degrees. (1) Pure equations of different degrees, i.e. equations con- taining only one power of the unknown (2) Mixed quadratics (3) Cubic equation (B) Indeterminate equations. I. Indeterminate equations of the first and second degrees. 83-88 88-90 90-93 93-94 95-98 95 95-98 99-105 105-107 107 108-111 111-112 112-113 113-114 114-115 115-117 117-120 |