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Rare book of Bhaskar’s Bijganit(Algebra)

Digital Rare Book:Bhaskara’s BIJA GANITA or The Algebra of the Hindus

By Edward Strachey

Of The East India Company’s Bengal Civil Service

Published by Black, Parry and Co., Leadenhall Street, London – 1813
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Bhaskara (1114 – 1185),also known as Bhaskara II and Bhaskara Achārya (“Bhaskara the teacher”)) was an Indian mathematician and astronomer. He was born near Bijjada Bida (in present day Bijapur district, Karnataka state, South India) into the Deshastha Brahmin family. Bhaskara was head of an astronomical observatory at Ujjain, the leading mathematical centre of ancient India. His predecessors in this post had included both the noted Indian mathematician Brahmagupta (598–c. 665) and Varahamihira. He lived in the Sahyadri region.
Bhaskara and his works represent a significant contribution to mathematical and astronomical knowledge in the 12th century. His main works were the Lilavati (dealing with arithmetic), Bijaganita (Algebra) and Siddhanta Shiromani (written in 1150) which consists of two parts: Goladhyaya (sphere) and Grahaganita (mathematics of the planets).
Some of Bhaskara’s contributions to mathematics include the following:

– A proof of the Pythagorean theorem by calculating the same area in two different ways and then canceling out terms to get a² + b² = c².

– In Lilavati, solutions of quadratic, cubic and quartic indeterminate equations.

– Solutions of indeterminate quadratic equations (of the type ax² + b = y²).

– Integer solutions of linear and quadratic indeterminate equations (Kuttaka). -The rules he gives are (in effect) the same as those given by the Renaissance European mathematicians of the 17th century

– A cyclic Chakravala method for solving indeterminate equations of the form ax² + bx + c = y. The solution to this equation was traditionally attributed to William Brouncker in 1657, though his method was more difficult than the chakravala method.

– His method for finding the solutions of the problem x² − ny² = 1 (so-called “Pell’s equation”) is of considerable interest and importance.

– Solutions of Diophantine equations of the second order, such as 61x² + 1 = y². This very equation was posed as a problem in 1657 by the French mathematician Pierre de Fermat, but its solution was unknown in Europe until the time of Euler in the 18th century.

– Solved quadratic equations with more than one unknown, and found negative and irrational solutions.

– Preliminary concept of mathematical analysis.

– Preliminary concept of infinitesimal calculus, along with notable contributions towards integral calculus.

– Conceived differential calculus, after discovering the derivative and differential coefficient.

– Stated Rolle’s theorem, a special case of one of the most important theorems in analysis, the mean value theorem. 

– Traces of the general mean value theorem are also found in his works.

– Calculated the derivatives of trigonometric functions and formulae. 

– In Siddhanta Shiromani, Bhaskara developed spherical trigonometry along with a number of other trigonometric results.

– Wiki

Manuscript of Bhaskara’s Lilavati

Leaves 24 and 26

Date unknown
Source: Wellcome Library

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4 comments on “Rare book of Bhaskar’s Bijganit(Algebra)

  1. Ericka Leijonhufvud
    January 7, 2017

    Reblogged this on Lake Malaren.


  2. Pingback: Rare book of Bhaskar’s Bijganit(Algebra) | HINDUISM AND SANATAN DHARMA – Voice of world

  3. Pingback: Rare book of Bhaskar’s Bijganit(Algebra) | HINDUISM AND SANATAN DHARMA – GLOBAL HINDUISM

  4. Sanatan Dharm and Hinduism
    September 17, 2018

    Reblogged this on GLOBAL HINDUISM.


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