Vedic Mathematics

Vedic Mathematics is a book written by the Indian monk Bharati Krishna Tirtha, and first published in 1965. It contains a list of mathematical techniques, which the author claimed were retrieved from the Vedas and supposedly contained all mathematical knowledge.

For developments in mathematics in the Vedic period, see Indian mathematics § Vedic period.

Vedic Mathematics
AuthorBharati Krishna Tirtha
CountryIndia
SubjectMental calculation
PublisherMotilal Banarsidass
Publication date
1965
ISBN978-8120801646
OCLC217058562

These claims have been since rejected in their entirety.[1] Krishna Tirtha failed to produce the claimed sources, and scholars unanimously note it to be a mere compendium of tricks for increasing the speed of elementary mathematical calculations with no overlap with historical mathematical developments during the Vedic period. However, there has been a proliferation of publications in this area and multiple attempts to integrate the subject into mainstream education by right-wing Hindu nationalist governments.

Contents

The book contains metaphorical aphorisms in the form of sixteen sutras and thirteen sub-sutras, which Krishna Tirtha claimed to allude to significant mathematical tools.[2] The range of their asserted applications spans from topic as diverse as statics and pneumatics to astronomy and financial domains.[2][3] Tirtha claimed that no part of advanced mathematics lay beyond the realms of his book and propounded that studying it for a couple of hours every day for a year equated to spending about two decades in any standardized education system to become professionally trained in the discipline of mathematics.[2]

Contra the hyperbolic claims of the author and publisher, the book is primarily a compendium of tricks that can be applied in elementary, middle and high school arithmetic and algebra, to gain faster results.[2] The sutras and sub-sutras are abstract literary expressions ("as much less", "one less than previous one" et al.) prone to creative interpretations; Krishna Tirtha exploited this to the extent of manipulating the same shloka to generate widely different mathematical equivalencies across a multitude of contexts.[2]

Source and relation with The Vedas

According to Krishna Tirtha, the sutras and other accessory content were found after years of solitary study of the Vedas—a set of sacred ancient Hindu scriptures—in a forest. They were supposedly contained in the pariśiṣṭa—a supplementary text/appendix—of the Atharvaveda.[2] He does not provide any more bibliographic clarification on the sourcing.[2] The book's editor, Professor V. S. Agrawala argues that since the Vedas are defined as the traditional repositories of all knowledge, any knowledge can be de facto assumed to be in the Vedas, irrespective of whether it may be physically located in them; he even went to the extent of deeming Krishna Tirtha's work as a pariśiṣṭa in itself.[4]

However, numerous mathematicians and STS scholars (Dani, Kim Plofker, K.S. Shukla, Jan Hogendijk et al) note that the Vedas do not contain any of those sutras and sub-sutras.[2][5][6][3] When challenged by Shukla, a mathematician and a historiographer of ancient Indian mathematics, to locate the sutras in the Parishishta of a standard edition of the Atharvaveda, Krishna Tirtha claimed that they were not included in the standard editions but only in a hitherto-undiscovered version, chanced upon by him; the foreword and introduction of the book also takes a similar stand.[2][4] Sanskrit scholars have also confirmed that the linguistic style did not correspond to the claimed time-spans but rather reflected contemporary Sanskrit.[2]

Dani points out that the contents of the book have "practically nothing in common" with the mathematics of the Vedic period or even with subsequent developments in Indian mathematics.[2] Shukla reiterates the observations, on a per-chapter basis.[4] For example, multiple techniques in the book involve the use of high-precision decimals. These were unknown during the Vedic times and were introduced in India only in the sixteenth century;[3] works of numerous ancient mathematicians such as Aryabhata, Brahmagupta and Bhaskara were entirely based on fractions.[2] Some of the sutras even claimed to run parallel to the General Leibniz rule and Taylor's theorem (which, per Krishna Tirtha, were to be yet studied by the western world during the time of his writing) but did ultimately boil down to the sub-elementary operations of basic differentiation on polynomials. From a historiographic perspective, India had no minimal knowledge about the conceptual notions of differentiation and integration.[2] Sutras have been further leveraged to claim that analytic geometry of conics occupied an important tier in Vedic mathematics, which runs contrary to all available evidence.[2][3]

Publication history and reprints

Although the book was first published in 1965, Krishna Tirtha had been propagating the techniques much earlier through lectures and classes.[2] He wrote the book in 1957.[7]:10 It was published in 1965, five years after his death, and included forty chapters in 367 pages. A foreword by Tirtha's disciple Manjula Trivedi claims that he had originally written 16 volumes—one on each sutra—but the manuscripts were lost before publication.[5][2]

Reprints were published in 1975 and 1978 to accommodate typographical corrections.[8] Several reprints have been published since the 1990s.[7]:6

Reception

S. G. Dani of the Indian Institute of Technology Bombay (IIT Bombay) notes the book to be of dubious quality. He believes it did a disservice both to the pedagogy of mathematical education by presenting the subject as a bunch of tricks without any conceptual rigor, and to science and technology studies in India (STS) by adhering to dubious standards of historiography.[2][lower-alpha 1] He also points out that while Tirtha's system could be used as a teaching aid, there was a need to prevent the use of "public money and energy on its propagation" except in a limited way and that authentic Vedic studies were being neglected in India even as Tirtha's system received support from several government and private agencies.[2] Jayant Narlikar has voiced similar concerns.[9] Hartosh Singh Bal notes that whilst Krishna Tirtha's attempts might be somewhat acceptable in light of his nationalistic inclinations during colonial rule (Krishna Tirtha had left his spiritual endeavors to be appointed as the principal of a college, set up during the British Raj to counter Macaulayism), it set the grounds for further ethno-nationalistic abuse of historiography by Hindu Nationalist parties; Thomas Trautmann views the development of Vedic Mathematics in a similar manner.[5][10] Others have viewed the works as an attempt at harmonizing religion with science.[11]

Meera Nanda has noted hagiographic descriptions of Indian knowledge systems by various right-wing cultural movements (including the BJP), which deemed Krishna Tirtha to be in the same league as Srinivasa Ramanujan.[12] In an article she wrote for Open magazine, Nanda observes that the sutras of Yajurveda on which Swami Shri Bharti Krishna has apparently based his theory of Vedic mathematics are not there in the Yajurveda at all.[13]

Some have however praised the methods and commented on its potential to attract school-children to mathematics and increase popular engagement with the subject.[14][15][16]

Originality of methods

Dani believes Krishna Tirtha's methods to be a product of his academic training in mathematics[lower-alpha 2] and long recorded habit of experimentation with numbers; nonetheless, he considers the work to be an impressive feat.[2] Similar systems include the Trachtenberg system or the techniques mentioned in Lester Meyers's 1947 book High-speed Mathematics.[2] Alex Bellos points out that several of the calculation tricks can also be found in certain European treatises on calculation from the early Modern period.[17]

Computation algorithms

Some of the algorithms have been tested for efficiency, with positive results.[18][19][20][21] However, most of the algorithms have higher time complexity than conventional ones, which explains the lack of adoption of Vedic mathematics in real life.[22]

Integration into mainstream education

The book had been included in the school syllabus of Madhya Pradesh and Uttar Pradesh, soon after the Bharatiya Janata Party (BJP), a right-wing Hindu nationalist political party came to power and chose to saffronise the education-system.[7]:6[12][23][24]

Dinanath Batra had conducted a lengthy campaign for the inclusion of Vedic Maths into the National Council of Educational Research and Training (NCERT) curricula.[25] Subsequently, there was a proposal from NCERT to induct Vedic Maths, along with a number of fringe pseudo-scientific subjects (Vedic Astrology et al.), into the standard academic curricula. This was only shelved after a number of academics and mathematicians, led by Dani and sometimes backed by political parties, opposed these attempts based on previously discussed rationales and criticized the move as a politically guided attempt at saffronization.[3][26][27][28][29][30] Concurrent official reports also advocated for its inclusion in the Madrassah education system to modernize it.[31]

After the BJP's return to power in 2014, three universities began offering courses on the subject while a television channel, catering to the topic, was also launched; generous education and research grants have also been allotted to the subject.[32][33][34][35]

Notes
  1. Dani's efforts to debunk the myth of Vedic Maths have been lauded by fellow mathematicians. Over Bhattacharya, Siddhartha; Das, Tarun; Ghosh, Anish; Shah, Riddhi (26 January 2015). Recent Trends in Ergodic Theory and Dynamical Systems. American Mathematical Society. p. 3. ISBN 9781470409319., M. S. Raghunathan admires his efforts in this regard.
  2. Krishna Tirtha had a Master of Arts in Mathematics.[2]

References
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  2. S. G. Dani (December 2006). "Myths and reality : On ‘Vedic mathematics’".
  3. Hogendijk, Jan (March 2004). "De Veda's en de berekeningen van goeroe Tirthaji" (PDF). Nieuwe Wiskrant. 23 (3): 49–52.
  4. Shukla, K.S. (2019). "Vedic Mathematics: The deceptive title of Swamiji's book". In Kolachana, Aditya; Mahesh, K.; Ramasubramanian, K. (eds.). Studies in Indian Mathematics and Astronomy: Selected Articles of Kripa Shankar Shukla. Sources and Studies in the History of Mathematics and Physical Sciences. Singapore: Springer Publishing. doi:10.1007/978-981-13-7326-8. ISBN 9789811373251.
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