Śrīdhara, Śrīdharācāryya or Śrīdhara Acharya ( 870 CE – 930 CE) was an
Indian mathematician
Indian mathematics emerged in the Indian subcontinent from 1200 BCE until the end of the 18th century. In the classical period of Indian mathematics (400 CE to 1200 CE), important contributions were made by scholars like Aryabhata, Brahmagupta ...
, Sanskrit
pandit
A Pandit ( sa, पण्डित, paṇḍit; hi, पंडित; also spelled Pundit, pronounced ; abbreviated Pt.) is a man with specialised knowledge or a teacher of any field of knowledge whether it is shashtra (Holy Books) or shastra (Wea ...
and
philosopher
A philosopher is a person who practices or investigates philosophy. The term ''philosopher'' comes from the grc, φιλόσοφος, , translit=philosophos, meaning 'lover of wisdom'. The coining of the term has been attributed to the Greek th ...
. He was born in Bhuriśreṣṭi (Bhurisriṣṭi or Bhurśuṭ) village in South Rādha at present day
Hugli in
West Bengal
West Bengal (, Bengali: ''Poshchim Bongo'', , abbr. WB) is a state in the eastern portion of India. It is situated along the Bay of Bengal, along with a population of over 91 million inhabitants within an area of . West Bengal is the fourt ...
, then undivided Bengal with its Capital at Gaur. His father's name was Baladevācārya or Baladeva Acharya and his mother's name was Acchoka Devi. His father was a Sanskrit pandit and philosopher.
Notable books
He is known for two main treatises: Trisatika (300) (sometimes called the Patiganitasara ) and the Pāṭīgaṇita ( bn, পাটীগণিত). It was written in three hundred ''ślokas'' thus his major work Pāṭīgaṇitasāra was named Triśatika. The book discusses counting of numbers, natural number, zero, measures, multiplication, fraction, division, squares, cubes, rule of three, interest-calculation, joint business or partnership, and mensuration (the main part of geometry concerned with ascertaining sizes, lengths, areas, and volumes). Three other works have been attributed to him, namely the Bījaganita, Navasatī, and Bṛhatpati.
Notable work
The below are some of his notable works:
* He gave an exposition on the zero. He wrote, "If zero is added to any number, the sum is the same number; if zero is subtracted from any number, the number remains unchanged; if zero is multiplied by any number, the product is zero".
* In the case of dividing a fraction he has found out the method of multiplying the fraction by the reciprocal of the divisor.
* He wrote on the practical applications of
algebra
Algebra () is one of the broad areas of mathematics. Roughly speaking, algebra is the study of mathematical symbols and the rules for manipulating these symbols in formulas; it is a unifying thread of almost all of mathematics.
Elementary a ...
.
* He separated
algebra
Algebra () is one of the broad areas of mathematics. Roughly speaking, algebra is the study of mathematical symbols and the rules for manipulating these symbols in formulas; it is a unifying thread of almost all of mathematics.
Elementary a ...
from
arithmetic
Arithmetic () is an elementary part of mathematics that consists of the study of the properties of the traditional operations on numbers— addition, subtraction, multiplication, division, exponentiation, and extraction of roots. In the 19th ...
.
* He was the first person to give an algorithm for solving
quadratic equation
In algebra, a quadratic equation () is any equation that can be rearranged in standard form as
ax^2 + bx + c = 0\,,
where represents an unknown (mathematics), unknown value, and , , and represent known numbers, where . (If and then the equati ...
s (although there is no indication that he considered two solutions).
* Sridharacharya's formula is also known as the
Quadratic formula
In elementary algebra, the quadratic formula is a formula that provides the solution(s) to a quadratic equation. There are other ways of solving a quadratic equation instead of using the quadratic formula, such as factoring (direct factoring, gr ...
or Sridharacharya's method. Sridharacharya Method is used to find solutions to quadratic equations of the general form ax² + bx + c = 0, a ≠ 0 and is given by
References
Bibliography
*
The Date of Sridharacharyaby
S. Srikanta Sastri
Sondekoppa Srikanta Sastri (5 November 1904 – 10 May 1974) was an Indian historian, Indologist, and polyglot. He authored around 12 books, over two hundred articles, several monographs and book reviews over four decades in English, Kannada, ...
, The Jaina Antiquary (Jan, 1948)
{{Authority control
870s births
930 deaths
9th-century Indian mathematicians
9th-century Indian philosophers
10th-century Indian mathematicians
10th-century Indian philosophers
Indian logicians
Scholars from West Bengal
Bengali mathematicians
Bengali philosophers