The Untapped Wealth of Manuscripts on Indian Astronomy and Mathematics
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Brahmagupta, Mathematician Par Excellence
GENERAL ARTICLE Brahmagupta, Mathematician Par Excellence C R Pranesachar Brahmagupta holds a unique position in the his- tory of Ancient Indian Mathematics. He con- tributed such elegant results to Geometry and Number Theory that today's mathematicians still marvel at their originality. His theorems leading to the calculation of the circumradius of a trian- gle and the lengths of the diagonals of a cyclic quadrilateral, construction of a rational cyclic C R Pranesachar is involved in training Indian quadrilateral and integer solutions to a single sec- teams for the International ond degree equation are certainly the hallmarks Mathematical Olympiads. of a genius. He also takes interest in solving problems for the After the Greeks' ascendancy to supremacy in mathe- American Mathematical matics (especially geometry) during the period 7th cen- Monthly and Crux tury BC to 2nd century AD, there was a sudden lull in Mathematicorum. mathematical and scienti¯c activity for the next millen- nium until the Renaissance in Europe. But mathematics and astronomy °ourished in the Asian continent partic- ularly in India and the Arab world. There was a contin- uous exchange of information between the two regions and later between Europe and the Arab world. The dec- imal representation of positive integers along with zero, a unique contribution of the Indian mind, travelled even- tually to the West, although there was some resistance and reluctance to accept it at the beginning. Brahmagupta, a most accomplished mathematician, liv- ed during this medieval period and was responsible for creating good mathematics in the form of geometrical theorems and number-theoretic results. -
Indian Mathematics
Indian Mathemtics V. S. Varadarajan University of California, Los Angeles, CA, USA UCLA, March 3-5, 2008 Abstract In these two lectures I shall talk about some Indian mathe- maticians and their work. I have chosen two examples: one from the 7th century, Brahmagupta, and the other, Ra- manujan, from the 20th century. Both of these are very fascinating figures, and their histories illustrate various as- pects of mathematics in ancient and modern times. In a very real sense their works are still relevant to the mathe- matics of today. Some great ancient Indian figures of Science Varahamihira (505–587) Brahmagupta (598-670) Bhaskara II (1114–1185) The modern era Ramanujan, S (1887–1920) Raman, C. V (1888–1970) Mahalanobis, P. C (1893–1972) Harish-Chandra (1923–1983) Bhaskara represents the peak of mathematical and astro- nomical knowledge in the 12th century. He reached an un- derstanding of calculus, astronomy, the number systems, and solving equations, which were not to be achieved any- where else in the world for several centuries...(Wikipedia). Indian science languished after that, the British colonial occupation did not help, but in the 19th century there was a renaissance of arts and sciences, and Indian Science even- tually reached a level comparable to western science. BRAHMAGUPTA (598–670c) Some quotations of Brahmagupta As the sun eclipses the stars by its brilliancy, so the man of knowledge will eclipse the fame of others in assemblies of the people if he proposes algebraic problems, and still more, if he solves them. Quoted in F Cajori, A History of Mathematics A person who can, within a year, solve x2 92y2 =1, is a mathematician. -
Ligo-India Proposal for an Interferometric Gravitational-Wave Observatory
LIGO-INDIA PROPOSAL FOR AN INTERFEROMETRIC GRAVITATIONAL-WAVE OBSERVATORY IndIGO Indian Initiative in Gravitational-wave Observations PROPOSAL FOR LIGO-INDIA !"#!$ Indian Initiative in Gravitational wave Observations http://www.gw-indigo.org II Title of the Project LIGO-INDIA Proposal of the Consortium for INDIAN INITIATIVE IN GRAVITATIONAL WAVE OBSERVATIONS IndIGO to Department of Atomic Energy & Department of Science and Technology Government of India IndIGO Consortium Institutions Chennai Mathematical Institute IISER, Kolkata IISER, Pune IISER, Thiruvananthapuram IIT Madras, Chennai IIT, Kanpur IPR, Bhatt IUCAA, Pune RRCAT, Indore University of Delhi (UD), Delhi Principal Leads Bala Iyer (RRI), Chair, IndIGO Consortium Council Tarun Souradeep (IUCAA), Spokesperson, IndIGO Consortium Council C.S. Unnikrishnan (TIFR), Coordinator Experiments, IndIGO Consortium Council Sanjeev Dhurandhar (IUCAA), Science Advisor, IndIGO Consortium Council Sendhil Raja (RRCAT) Ajai Kumar (IPR) Anand Sengupta(UD) 10 November 2011 PROPOSAL FOR LIGO-INDIA II PROPOSAL FOR LIGO-INDIA LIGO-India EXECUTIVE SUMMARY III PROPOSAL FOR LIGO-INDIA IV PROPOSAL FOR LIGO-INDIA This proposal by the IndIGO consortium is for the construction and subsequent 10- year operation of an advanced interferometric gravitational wave detector in India called LIGO-India under an international collaboration with Laser Interferometer Gravitational–wave Observatory (LIGO) Laboratory, USA. The detector is a 4-km arm-length Michelson Interferometer with Fabry-Perot enhancement arms, and aims to detect fractional changes in the arm-length smaller than 10-23 Hz-1/2 . The task of constructing this very sophisticated detector at the limits of present day technology is facilitated by the amazing opportunity offered by the LIGO Laboratory and its international partners to provide the complete design and all the key components required to build the detector as part of the collaboration. -
Secondary Indian Culture and Heritage
Culture: An Introduction MODULE - I Understanding Culture Notes 1 CULTURE: AN INTRODUCTION he English word ‘Culture’ is derived from the Latin term ‘cult or cultus’ meaning tilling, or cultivating or refining and worship. In sum it means cultivating and refining Ta thing to such an extent that its end product evokes our admiration and respect. This is practically the same as ‘Sanskriti’ of the Sanskrit language. The term ‘Sanskriti’ has been derived from the root ‘Kri (to do) of Sanskrit language. Three words came from this root ‘Kri; prakriti’ (basic matter or condition), ‘Sanskriti’ (refined matter or condition) and ‘vikriti’ (modified or decayed matter or condition) when ‘prakriti’ or a raw material is refined it becomes ‘Sanskriti’ and when broken or damaged it becomes ‘vikriti’. OBJECTIVES After studying this lesson you will be able to: understand the concept and meaning of culture; establish the relationship between culture and civilization; Establish the link between culture and heritage; discuss the role and impact of culture in human life. 1.1 CONCEPT OF CULTURE Culture is a way of life. The food you eat, the clothes you wear, the language you speak in and the God you worship all are aspects of culture. In very simple terms, we can say that culture is the embodiment of the way in which we think and do things. It is also the things Indian Culture and Heritage Secondary Course 1 MODULE - I Culture: An Introduction Understanding Culture that we have inherited as members of society. All the achievements of human beings as members of social groups can be called culture. -
Rationale of the Chakravala Process of Jayadeva and Bhaskara Ii
HISTORIA MATHEMATICA 2 (1975) , 167-184 RATIONALE OF THE CHAKRAVALA PROCESS OF JAYADEVA AND BHASKARA II BY CLAS-OLOF SELENIUS UNIVERSITY OF UPPSALA SUMMARIES The old Indian chakravala method for solving the Bhaskara-Pell equation or varga-prakrti x 2- Dy 2 = 1 is investigated and explained in detail. Previous mis- conceptions are corrected, for example that chakravgla, the short cut method bhavana included, corresponds to the quick-method of Fermat. The chakravala process corresponds to a half-regular best approximating algorithm of minimal length which has several deep minimization properties. The periodically appearing quantities (jyestha-mfila, kanistha-mfila, ksepaka, kuttak~ra, etc.) are correctly understood only with the new theory. Den fornindiska metoden cakravala att l~sa Bhaskara- Pell-ekvationen eller varga-prakrti x 2 - Dy 2 = 1 detaljunders~ks och f~rklaras h~r. Tidigare missuppfatt- 0 ningar r~ttas, sasom att cakravala, genv~gsmetoden bhavana inbegripen, motsvarade Fermats snabbmetod. Cakravalaprocessen motsvarar en halvregelbunden b~st- approximerande algoritm av minimal l~ngd med flera djupt liggande minimeringsegenskaper. De periodvis upptr~dande storheterna (jyestha-m~la, kanistha-mula, ksepaka, kuttakara, os~) blir forstaellga0. 0 . f~rst genom den nya teorin. Die alte indische Methode cakrav~la zur Lbsung der Bhaskara-Pell-Gleichung oder varga-prakrti x 2 - Dy 2 = 1 wird hier im einzelnen untersucht und erkl~rt. Fr~here Missverst~ndnisse werden aufgekl~rt, z.B. dass cakrav~la, einschliesslich der Richtwegmethode bhavana, der Fermat- schen Schnellmethode entspreche. Der cakravala-Prozess entspricht einem halbregelm~ssigen bestapproximierenden Algorithmus von minimaler L~nge und mit mehreren tief- liegenden Minimierungseigenschaften. Die periodisch auftretenden Quantit~ten (jyestha-mfila, kanistha-mfila, ksepaka, kuttak~ra, usw.) werden erst durch die neue Theorie verst~ndlich. -
The Brahmagupta Triangles Raymond A
The Brahmagupta Triangles Raymond A. Beauregard and E. R. Suryanarayan Ray Beauregard ([email protected]) received his Ph.D. at the University of New Hampshire in 1968, then joined the University of Rhode Island, where he is a professor of mathematics. He has published many articles in ring theory and two textbooks. Linear Algebra (written with John Fraleigh) is currently in its third edition. Besides babysitting for his grandchild Elyse, he enjoys sailing the New England coast on his sloop, Aleph One, and playing the piano. E. R. Suryanarayan ([email protected]) taught at universities in India before receiving his Ph.D. (1961) at the University of Michigan, under Nathaniel Coburn. He has been at the University of Rhode Island since 1960, where is a professor of mathematics. An author of more than 20 research articles in applied mathematics, crystallography, and the history of mathematics, he lists as his main hobbies music, languages, and aerobic walking. The study of geometric objects has been a catalyst in the development of number theory. For example, the figurate numbers (triangular, square, pentagonal, . ) were a source of many early results in this field [41.Measuring the length of a diagonal of a rectangle led to the problem of approxin~atingfi for a natural number N. The study of triangles has been of particular significance. Heron of Alexandria (c. A.D. 75)-gave the well-known formula for the area A of a triangle in terms of its sides: A = Js(s - a)(s- b)(s- c),where s = (a + b + c)/2 is the semiperimeter of the triangle having sides a,b, c [41.He illustrated this with a triangle whose sides are 13,14,15 and whose area is 84. -
The GREAT ARC 1-23.Qxd 6/24/03 5:27 PM Page 2
1-23.qxd 6/24/03 5:27 PM Page 1 The GREAT ARC 1-23.qxd 6/24/03 5:27 PM Page 2 SURVEY of INDIA AN INTRODUCTION Dr. Prithvish Nag, Surveyor General of India he Survey of lndia has played an invaluable respite, whether on the slopes of the Western Ghats, role in the saga of India’s nation building. the swampy areas of the Sundarbans, ponds and TIt has seldom been realized that the founding tanks, oxbow lakes or the meandering rivers of of modern India coincides with the early activities of Bengal, Madurai or the Ganga basin. Neither were this department, and the contribution of the Survey the deserts spared, nor the soaring peaks of the has received little emphasis - not even by the Himalayas, the marshlands of the Rann of Kutch, department itself. Scientific and development rivers such as the Chambal in the north and Gandak initiatives in the country could not have taken place to the east, the terai or the dooars.With purpose and without the anticipatory actions taken by the dedication the intrepid men of the Survey confronted department, which played an indispensable the waves of the Arabian Sea and Bay of Bengal, dust pioneering role in understanding the country’s storms of Rajasthan, cyclones of the eastern coast, the priorities in growth and defense. cold waves of the north and the widespread The path-breaking activities of the Survey came, monsoons and enervating heat. of course, at a price and with immense effort. The It was against this price, and with the scientific measurement of the country, which was the determination and missionary zeal of the Survey’s Survey’s primary task, had several ramifications. -
Aryabhatiya with English Commentary
ARYABHATIYA OF ARYABHATA Critically edited with Introduction, English Translation. Notes, Comments and Indexes By KRIPA SHANKAR SHUKLA Deptt. of Mathematics and Astronomy University of Lucknow in collaboration with K. V. SARMA Studies V. V. B. Institute of Sanskrit and Indological Panjab University INDIAN NATIONAL SCIENCE ACADEMY NEW DELHI 1 Published for THE NATIONAL COMMISSION FOR THE COMPILATION OF HISTORY OF SCIENCES IN INDIA by The Indian National Science Academy Bahadur Shah Zafar Marg, New Delhi— © Indian National Science Academy 1976 Rs. 21.50 (in India) $ 7.00 ; £ 2.75 (outside India) EDITORIAL COMMITTEE Chairman : F. C. Auluck Secretary : B. V. Subbarayappa Member : R. S. Sharma Editors : K. S. Shukla and K. V. Sarma Printed in India At the Vishveshvaranand Vedic Research Institute Press Sadhu Ashram, Hosbiarpur (Pb.) CONTENTS Page FOREWORD iii INTRODUCTION xvii 1. Aryabhata— The author xvii 2. His place xvii 1. Kusumapura xvii 2. Asmaka xix 3. His time xix 4. His pupils xxii 5. Aryabhata's works xxiii 6. The Aryabhatiya xxiii 1. Its contents xxiii 2. A collection of two compositions xxv 3. A work of the Brahma school xxvi 4. Its notable features xxvii 1. The alphabetical system of numeral notation xxvii 2. Circumference-diameter ratio, viz., tz xxviii table of sine-differences xxviii . 3. The 4. Formula for sin 0, when 6>rc/2 xxviii 5. Solution of indeterminate equations xxviii 6. Theory of the Earth's rotation xxix 7. The astronomical parameters xxix 8. Time and divisions of time xxix 9. Theory of planetary motion xxxi - 10. Innovations in planetary computation xxxiii 11. -
Kamala¯Kara Commentary on the Work, Called Tattvavivekodāharan
K related to the Siddhānta-Tattvaviveka, one a regular Kamala¯kara commentary on the work, called Tattvavivekodāharan. a, and the other a supplement to that work, called Śes.āvasanā, in which he supplied elucidations and new K. V. SARMA material for a proper understanding of his main work. He held the Sūryasiddhānta in great esteem and also wrote a Kamalākara was one of the most erudite and forward- commentary on that work. looking Indian astronomers who flourished in Varanasi Kamalākara was a critic of Bhāskara and his during the seventeenth century. Belonging to Mahar- Siddhāntaśiroman. i, and an arch-rival of Munīśvara, a ashtrian stock, and born in about 1610, Kamalākara close follower of Bhāskara. This rivalry erupted into came from a long unbroken line of astronomers, bitter critiques on the astronomical front. Thus Ranga- originally settled at the village of Godā on the northern nātha, younger brother of Kamalākara, wrote, at the . banks of the river Godāvarī. Towards AD 1500, the insistence of the latter, a critique on Munīśvara’s Bhangī family migrated to Varanasi and came to be regarded as method (winding method) of true planets, entitled . reputed astronomers and astrologers. Kamalākara Bhangī-vibhangī (Defacement of the Bhangi), to which . studied traditional Hindu astronomy under his elder Munīśvara replied with a Khand.ana (Counter). Munīś- brother Divākara, but extended the range of his studies vara attacked the theory of precession advocated by to Islamic astronomy, particularly to the school of Kamalākara, and Ranganātha refuted the criticisms of his Ulugh Beg of Samarkand. He also studied Greek brother in his Loha-gola-khan. -
A Study on the Encoding Systems in Vedic Era and Modern Era 1K
International Journal of Pure and Applied Mathematics Volume 114 No. 7 2017, 425-433 ISSN: 1311-8080 (printed version); ISSN: 1314-3395 (on-line version) url: http://www.ijpam.eu Special Issue ijpam.eu A Study on the Encoding Systems in Vedic Era and Modern Era 1K. Lakshmi Priya and 2R. Parameswaran 1Department of Mathematics, School of Arts and Sciences, Amrita University, Kochi. [email protected] 2Department of Mathematics, School of Arts and Sciences, Amrita University, Kochi. [email protected] Abstract Encoding is the action of transferring a message in to codes. In this paper I present a study on the encoding systems in vedic era and modern era. The Sanskrit verses written in the vedic era are not just the praises of the Gods they are also numerical codes. In ancient India there were three means of recording numerals in Sanskrit words which are Katapayadi system, Bhutasamkhya system and Aryabhata numeration. These systems were used by many ancient mathematicians in India. In this paper the Katapayadi system used in vedic times is applied to modern ciphers– Vigenere Cipher and Affine Cipher. Key Words:Katapayadi system, vigenere cipher, affine cipher. 425 International Journal of Pure and Applied Mathematics Special Issue 1. Introduction Encoding is the process of transforming messages into an arrangement required for data transmission, storage and compression/decompression. In cryptography, encryption is the method of transforming information using an algorithm to make it illegible to anyone except those owning special information, usually called as a key. In vedic era, Sanskrit is the language used. It is supposed to be the ancient language, from which most of the modern dialects are developed. -
Astronomy in India
TRADITIONSKnowledg & PRACTICES OF INDIA e Textbook for Class XI Module 1 Astronomy in India CENTRAL BOARD OF SECONDARY EDUCATION Shiksha Kendra, 2, Community Centre, Preet Vihar, Delhi-110 092 India TRADITIONSKnowledg & PRACTICESe OF INDIA Textbook for Class XI Module 1 Astronomy in India CENTRAL BOARD OF SECONDARY EDUCATION Shiksha Kendra, 2, Community Centre, Preet Vihar, Delhi-110 092 India No part of this publication may be reproduced or stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical photocopying, recording or otherwise, without the prior permission of the Central Board of Secondary Education (CBSE). Preface India has a rich tradition of intellectual inquiry and a textual heritage that goes back to several hundreds of years. India was magnificently advanced in knowledge traditions and practices during the ancient and medieval times. The intellectual achievements of Indian thought are found across several fields of study in ancient Indian texts ranging from the Vedas and the Upanishads to a whole range of scriptural, philosophical, scientific, technical and artistic sources. As knowledge of India's traditions and practices has become restricted to a few erudite scholars who have worked in isolation, CBSE seeks to introduce a course in which an effort is made to make it common knowledge once again. Moreover, during its academic interactions and debates at key meetings with scholars and experts, it was decided that CBSE may introduce a course titled ‘Knowledge Traditions and Practices of India’ as a new Elective for classes XI - XII from the year 2012-13. It has been felt that there are many advantages of introducing such a course in our education system. -
Prakashika 44
BRAHMASIDDHᾹNTA in Śākalyasaṁhitā Critically edited text, transliteration, notes and explanation in English Brahmsidhanta.indd 1 9/20/2019 10:36:20 AM Prakashika Series No. 44 General Editor Pratapanand Jha Brahmsidhanta.indd 2 9/20/2019 10:36:21 AM BRAHMASIDDHᾹNTA in Śākalyasaṁhitā Critically edited text, transliteration, notes and explanation in English Editor and Translator Somenath Chatterjee Brahmsidhanta.indd 3 9/20/2019 10:36:21 AM Published by: National Mission for Manuscripts 11 Man Singh Road New Delhi 110 001 Phone: 91 11 2307 3387 E-mail: [email protected] Website: www.namami.nic.in and Co-published by: Dev Publishers & Distributors 2nd Floor, Prakash Deep, 22, Delhi Medical Association Road, Darya Ganj, New Delhi - 110002 Phone: 91 11 43572647 Email: [email protected] Website: www.devbooks.co.in ISBN 978-93-80829-64-7 First published 2019 © 2019, National Mission for Manuscripts All rights reserved including those of translation into other languages. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form, or by any means, electronic, mechanical, photocopying, recording or otherwise, without the written Brahmsidhanta.indd 4 9/20/2019 10:36:21 AM Contents Foreword vii Introduction 1 Text 28 Transliteration 105 Notes and Explanations 169 Appendix A: Technical Terms 209 Bibliography 214 Critical Apparatus 217 Brahmsidhanta.indd 5 9/20/2019 10:36:21 AM Brahmsidhanta.indd 6 9/20/2019 10:36:21 AM Foreword The concept of Astronomy can be traced back to Vedic literature. Vedāṅga Jyotiṣa, dated 1370 B.C. is considered to be the first compiled astronomical text in India.