Tantrasaṅgraha of Nīlakaṇṭha Somayājī : Revised and Expanded Edition

Ramasubramanian, K./ Sriram, M. S.

Springer Verlag, Singapore（2026/02発売）

• 製本 Hardcover:ハードカバー版／ページ数 632 p.
• 言語 ENG
• 商品コード 9789819548569

Full Description

Tantrasaṅgraha, composed by the renowned Kerala astronomer Nīlakantha Somayājī (c. 1444-1545 AD), ranks along with Āryabhaṭīya of Āryabhaṭa and Siddhāntaśiromaṇi of Bhāskarācārya as one of the major works which significantly influenced further work on astronomy in India. One of the distinguishing features of this revised and expanded edition of the book is the introduction of a major revision of the traditional Indian planetary model. Nīlakaṇṭha arrived at a unified theory of planetary latitudes and a better formulation of the equation of centre for the interior planets (Mercury and Venus) than was previously available.

In preparing the translation and explanatory notes, the authors have used authentic Sanskrit editions of Tantrasaṅgraha by Surand Kunjan Pillai and K. V. Sarma. All verses have been translated into English, which have been supplemented with detailed explanations including all necessary mathematical relations, illustrative examples, figures and tables by using modern mathematical notation.

Contents

Mean longitudes of planets.- True longitudes of planets.- Gnomonic shadow.- Lunar eclipse.- Solar eclipse.- Vyatīpāta.- Reduction to observation.- Elevation of lunar horns.- Appendix A.- Appendix B.- Appendix C.- Appendix D.- Appendix E.- Appendix F.