The 'Bakhshali Manuscript' is a
mathematical manuscript written on
birch bark which was found near the village of Bakhshali in what is now
Pakistan in
1881. The manuscript is incomplete, with only seventy leaves of birch bark, many mere scraps, remaining.
Its date is uncertain, and has generated considerable debate. Most scholars agree that the physical manuscript is a copy of a more ancient text, so that the dating of that ancient text is possible only based on the content.
Recent scholarship dates it between the 2nd c. BCE and the 3d c. CE; Ian Pearce summarizes the positions:
:Gurjar discusses its date in detail, and concludes it can be dated no more accurately than 'between 2nd century BC and 2nd century AD'. He offers compelling evidence by way of detailed analysis of the contents of the manuscript (originally carried out by R Hoernle). His evidence includes the language in which it was written ('died out' around 300 AD), discussion of currency found in several problems, and the absence of techniques known to have been developed by the 5th century. Further support of these dates is provided by several occurrences of terminology found only in the manuscript, (which form the basis of a paper by M Channabasappa).
[1].
However, earlier scholars have tended to date it around 400AD (Hoernle, Datta/Singh, Bag, Gupta).
Hayashi had suggested a possible seventh century date
[2],
while in an early colonial estimate, G.R. Kaye had assessed it to be as late as 12th c. AD. Such late dates are quite unlikely because the language used was already dying by the 4th c.; also the work does not mention integer equations and other topics which were of widespread interest after
Aryabhata (5th c. AD). Today, Kaye's assessment is widely discredited.
[3][4].
The reason why the date of the manuscript is important, is that if the work indeed dates
from the 3d c. or earlier, it would imply that the concept of the mathematical
zero was known several centuries earlier than the work of
Brahmagupta in (7th c.).
The manuscript gives various
algorithms and techniques for a variety of problems, such as computing
square roots and dealing with
negative numbers.
[5]
See also
★
Bakhshali approximation
★
Indian mathematics
★
Zero (number)
References
1.
The Bakhshali manuscript Ian Pearce
2.
T Hayashi, The Bakhshali manuscript : An ancient Indian mathematical treatise
(Groningen, 1995).
3. Joseph, G. G. (2000). ''The Crest of the Peacock, non-European roots of Mathematics''. Princeton and Oxford: Princeton University Press. Quote: "...It is particularly unfortunate that Kaye is still quoted as an authority on Indian mathematics." [p.215-216]
4.
Review: G. R. Kaye, The Bakhshâlî Manuscript—A Study in Mediaeval Mathematics, 1927, Bibhutibhusan Datta, , , ,
5. The Nine Chapters on the Mathematical Art: Companion and Commentary, John Newsome Crossley, Anthony Wah-Cheung Lun, Kangshen Shen, Shen Kangsheng, , , Oxford University Press, 1999, ISBN 0198539363
External links
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The Bakhshali manuscript
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6 - The Bakhshali manuscript