Mathematician:Bhāskara II Āchārya

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Mathematician

Bhāskara (Kannada: ಭಾಸ್ಕರಾಚಾರ್ಯ) was an Indian mathematician and astronomer.

He is known as Bhāskara II, Bhāskara Āchārya ("Bhāskara the teacher"), or Bhāskarāchārya, to distinguish him from Bhāskara I).


Nationality

Indian


History

  • Born: 1114 in Vijayapura, near Bijjada Bida (in present day Bijapur district, Karnataka state), South India
  • Died: 1185 in Ujjain, India


Theorems and Definitions

  • A proof of Pythagoras' Theorem by dropping a perpendicular and investigating the relations between the ratios of the sides of the resulting similar triangles.

Results named for Bhāskara II Āchārya can be found here.


Publications

All written in ca. 1150 B.C.E.:

  • Līlāvatī (about arithmetic)
  • Bijaganita (about algebra)
  • Siddhanta Shiromani which consists of two parts:
    • Goladhyaya (sphere)
    • Grahaganita (mathematics of the planets).


Notable Quotes

Behold!
-- on demonstrating a proof of Pythagoras's Theorem


The second value is in this case not to be taken, for it is inadequate; people do not approve of negative roots.
-- on negative roots


Sources