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Work
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Author
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Fact file
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Vedanga Jyotisha
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Lagadha
(1st c. BCE)
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Describes rules for tracking motion of sun and moon
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Yavanajataka
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Sphujidvaja
1st-2nd c. CE)
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Translated it mean “Nativity as per the Greeks”
It is a collection of astrology-related ideas borrowed from
Greek world
Gives rules for building horoscopes
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Surya Siddhanta
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Establishes rules to determine motions of stellar objects
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Paulisa Siddhanta
(Doctrine of Paul)
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Based on works of Paul of Alexandria
(c. 378 CE)
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Romaka Siddhanta
(Doctrine of the Romans)
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Based on works of Rome
It is the only Indian work based on the tropical system
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Vasishta Siddhanta
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Attributed to sage Vasishta
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Panchasiddhantika
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Varahamihira
(c. 550 CE)
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Work that compares five treatises on astronomy viz. Surya
Siddhanta, Paulisa Siddhanta, Romaka Siddhanta, Vasishta Siddhanta and
Paitamaha Siddhanta
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Sulba sutras
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Baudhayana (c. 800 BCE),
Apasthamba (c. 600 BCE), Katyayana
(c. 200 BCE)
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Baudhayana enumerated the Pythagoras theorem. He also
described square root of 2 and geometric shapes such as squares and
rectangles
Apasthamba and Katyayana developed these principles further
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Chandahsastra
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Pingala
(4th-2nd c. BCE)
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First known description of binary numeral system in the world
Also describes Pascal’s triangle, binomial theorem and
Fibonacci numbers
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Aryabhatiya
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Aryabhata
(c 522 CE
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Introduced decimal value notation
Describes heliocentric model of solar system
Explained lunar and solar eclipses
Gave duration of one year as 365 days 6 hrs 12 min 30 sec
Gave value of pi (3.1416)
Correctly calculated earth’s circumference as 24,835 miles
Aryabhata’s principles are still in use for fixing the Hindu
calendar Panchanga
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Mahabhaskariya
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Bhaskara I
(c. 600 – 680 CE)
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Representation of numbers in positional system
Solved Wilson’s theorem and Pell equation
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Brahmasputasiddhanta
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Brahmagupta
(c. 630 CE)
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Describes solution of linear equation
Solve system of simultaneous indeterminate equations
Sum of series
Introduced the concept of zero
Formula for cyclic quadrilaterals
Rebutted the idea that moon is farther from earth than the sun
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