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Mañjula
Mañjula (fl. 932), also known as Muñjāla, was an Indian astronomer, whose only surviving work is '' Laghu-mānasa'', an ephemeris and calculation text in Sanskrit language. He may have also authored another text, the ''Bṛhan-mānasa'', but this is not certain. Name Mañjula is also known as Mañjālaka, Muñjāla, Muñjālaka, and Mañjulācārya (Manjula-''acharya''). Mañjula (Sanskrit for "lovely" or "charming") seems to be his actual name, as early writers - including his earliest commentator Prashasti-dhara (958 CE) - refer to him by this name. The name Muñjāla or Muñjālaka became popular, especially in South India, because of the popularity of Surya-deva Yajva's commentary (1248 CE), which refers to him by this name. Bhaskara II (c. 1150 CE) and his commentator Munishvara (fl. 1646 CE) also use the name Muñjāla. Nevertheless, several other writers continued to use the name Mañjula, including those in South India; these include Yallaya (fl. 1482 CE) and Tamma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laghumānasa
''Laghu-mānasa'' (c. 932 CE) is a Sanskrit-language text on astronomy by the Indian astronomer Mañjula. It is a '' karana'' text containing simple rules for astronomical calculations, aimed at panchanga-makers. It remained highly popular across a vast region of present-day India for several years: the first pre-modern commentary on it was written in Kashmir in 958, and the last one was written in 1732 in Kerala. Date and authorship ''Laghu-mānasa'' is the only surviving work of Mañjula, whose geographic location is not known. Mañjula adopted 10 March 932 CE (Saturday noon of Chaitra 1, Shaka 854) as the epoch of calculation in text, which suggests that he started composing the text sometime in 932 CE. According to Surya-deva Yajva's commentary on the text, Mañjula studied several works on astronomy, and summarized them in an earlier work called ''Laghu-mānasa''. He asked one of his pupils to take a copy of the work to the local king. The pupil did so, but took credit f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Suryadeva Yajvan
Suryadeva (1191 – at least 1248 CE) was a Sanskrit-language writer on astrology and astronomy ('' jyotisha'')) from the Chola kingdom of southern India. He wrote commentaries on several notable works including the ''Aryabhatiya'' and the '' Laghu-manasa''. Biography Suryadeva was a Brahmana of the Nidhruva ''gotra'', associated with the '' Bodhayana Sutra'', claiming descent (pravaras) from the sages Kashyapa, Avatsara, and Naidhruva. His works use different suffixes for his name, including Sūri, Yajvā, Yajvān, Somasut, and Dīkṣita. Sūri refers to his scholarship; the other suffixes suggest that he had performed the Soma-yajna ritual sacrifice. According to his commentary on ''Laghumanasa'', Suryadeva was born in 1191 CE (Monday, 3rd day of the dark half of the Magha month of the Shaka year 1113). He lived in the Chola kingdom, and resided in a town that different manuscripts variously call Gangapuram, Gangapuri, and Shri-ranga-gangapuri; this town can be identified ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Floruit
''Floruit'' ( ; usually abbreviated fl. or occasionally flor.; from Latin for 'flourished') denotes a date or period during which a person was known to have been alive or active. In English, the unabbreviated word may also be used as a noun indicating the time when someone flourished. Etymology and use is the third-person singular perfect active indicative of the Latin verb ', ' "to bloom, flower, or flourish", from the noun ', ', "flower". Broadly, the term is employed in reference to the peak of activity for a person or movement. More specifically, it often is used in genealogy and historical writing when a person's birth or death dates are unknown, but some other evidence exists that indicates when they were alive. For example, if there are Will (law), wills Attestation clause, attested by John Jones in 1204 and 1229, as well as a record of his marriage in 1197, a record concerning him might be written as "John Jones (fl. 1197–1229)", even though Jones was born before ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lost Literary Work
A lost literary work (referred throughout this article just as a lost work) is a document, literary work, or piece of multimedia, produced of which no surviving copies are known to exist, meaning it can be known only through reference, or literary fragments. This term most commonly applies to works from the classical world, although it is increasingly used in relation to modern works. A work may be lost to history through the destruction of an original manuscript and all later copies. Works—or, commonly, small fragments of works—have survived by being found by archaeologists during investigations, or accidentally by laypersons such as, for example, the finding Nag Hammadi library scrolls. Works also survived when they were reused as bookbinding materials, quoted or included in other works, or as palimpsests, where an original document is imperfectly erased so the substrate on which it was written can be reused. The discovery, in 1822, of Cicero's '' De re publica'' was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patna
Patna (; , ISO 15919, ISO: ''Paṭanā''), historically known as Pataliputra, Pāṭaliputra, is the List of state and union territory capitals in India, capital and largest city of the state of Bihar in India. According to the United Nations, as of 2018, Patna had a population of 2.35 million, making it the List of cities in India by population, 19th largest city in India. Covering and over 2.5 million people, its urban agglomeration is the List of million-plus urban agglomerations in India, 18th largest in India. Patna also serves as the seat of Patna High Court. The Buddhist, Hindu and Jain pilgrimage centres of Vaishali district, Vaishali, Rajgir, Nalanda, Bodh Gaya and Pawapuri are nearby and Patna City is a sacred city for Sikhs as the tenth 10th Sikh Guru, Sikh Guru, Guru Gobind Singh was born here. The modern city of Patna is mainly on the southern bank of the river Ganges. The city also straddles the rivers Son River, Son, Gandak and Punpun River, Punpun. The city ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IAST
The International Alphabet of Sanskrit Transliteration (IAST) is a transliteration scheme that allows the lossless romanisation of Brahmic family, Indic scripts as employed by Sanskrit and related Indic languages. It is based on a scheme that emerged during the 19th century from suggestions by Sir Charles Trevelyan, 1st Baronet, Charles Trevelyan, William Jones (philologist), William Jones, Monier Monier-Williams and other scholars, and formalised by the Transliteration Committee of the Geneva International Congress of Orientalists, Oriental Congress, in September 1894. IAST makes it possible for the reader to read the Indic text unambiguously, exactly as if it were in the original Indic script. It is this faithfulness to the original scripts that accounts for its continuing popularity amongst scholars. Usage Scholars commonly use IAST in publications that cite textual material in Sanskrit, Pāḷi and other classical Indian languages. IAST is also used for major e-text repos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Balachandra Rao
Balachandra Rao (Devanagari: बालचंद्र राव; 24 December 1944 – 14 May 2025) was an Indian mathematician at National Institute of Advanced Studies in Bangalore. He authored several books in the field of science, astronomy, mathematics. He was also trained in Sanskrit literature. He dedicated his life towards decoding the rich intellectual heritage of the ancient India. He was also called ''S Balachandra Rao''. His quotes on Vedanga Jyotish, Life Rao was born on 24 December 1944. He started his career as a professor of mathematics at National College in Bangalore. He later became the principal of the college. After retirement, he served at National Institute of Advanced Studies as a mathematician. Later he joined Gandhi Centre of Science and Human Values in Bengaluru. There he became the director of the institute. Rao died on 14 May 2025, at the age of 80. Researches and notable works In 1992, Rao started his journey of research in the field of the a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vaṭeśvara
Vaṭeśvara ( ) (born c. 880), was a tenth-century Indian mathematician from Kashmir who presented several trigonometric identities. He was the author (at the age of 24) of the '' Vaṭeśvara-siddhānta,'' written in 904 AD, a treatise focusing on astronomy and applied mathematics.The work criticized Brahmagupta and defended Aryabhatta I. An edition of the first three chapters was published in 1962 by R. S. Sharma and Mukund Mishra. Al Biruni referred to the works by Vateswara, particularly the Karaṇasāra, noting that the author was the son of Mihdatta who belonged to Nagarapura (also referred to as Anandapura, now named Vadnagar). The Karaṇasāra uses 821 Saka era (899 AD) as a reference year. References Other sources * K. V. Sarma (1997), "Vatesvara", Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures edited by Helaine Selin Helaine Selin (born 1946) is an American librarian, historian of science, author and book editor. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lalla
Lalla ( 720–790 CE) was an Indian Indian mathematics, mathematician, astronomer, and astrologer who belonged to a family of astronomers. Lalla was the son of Trivikrama Bhatta and the grandson of Śâmba."Lalla." Complete Dictionary of Scientific Biography. He lived in central India, possibly in the Lāṭa region in modern south Gujarat. Lalla was known as being one of the leading Indian astronomers of the eighth century. Only two of his works are currently thought to be extant.Bracher, Katherine His best-known work is the ''Śiṣyadhīvṛddhidatantra'' ("Treatise which expands the intellect of students"). This text is one of the first major Sanskrit astronomical texts known from the period following the 7th-century works of Brahmagupta and Bhāskara I. It generally treats the same astronomical subject matter and demonstrates the same computational techniques as earlier authors, although there are some significant innovations, such that Lalla’s treatise offers a compromise ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surya Siddhanta
The ''Surya Siddhanta'' (; ) is a Sanskrit treatise in Indian astronomy dated to 4th to 5th century,Menso Folkerts, Craig G. Fraser, Jeremy John Gray, John L. Berggren, Wilbur R. Knorr (2017)Mathematics Encyclopaedia Britannica, Quote: "(...) its Hindu inventors as discoverers of things more ingenious than those of the Greeks. Earlier, in the late 4th or early 5th century, the anonymous Hindu author of an astronomical handbook, the ''Surya Siddhanta'', had tabulated the sine function (...)" in fourteen chapters.Plofkerpp. 71–72 The ''Surya Siddhanta'' describes rules to calculate the motions of various planets and the moon relative to various constellations, diameters of various planets, and calculates the orbits of various astronomical bodies. The text is known from a palm-leaf manuscript, and several newer manuscripts. It was composed or revised probably c. 800 CE from an earlier text also called the ''Surya Siddhanta''. The ''Surya Siddhanta'' text is composed of verses mad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brāhmasphuṭasiddhānta
The ''Brāhma-sphuṭa-siddhānta'' ("Correctly Established Doctrine of Brahma", abbreviated BSS) is a main work of Brahmagupta, written c. 628. This text of mathematical astronomy contains significant mathematical content, including the first good understanding of the role of zero, rules for manipulating both negative and positive numbers, a method for computing square roots, methods of solving linear and quadratic equations, and rules for summing series, Brahmagupta's identity, and Brahmagupta theorem. The book was written completely in verse and does not contain any kind of mathematical notation. Nevertheless, it contained the first clear description of the quadratic formula (the solution of the quadratic equation).Bradley, Michael. ''The Birth of Mathematics: Ancient Times to 1300'', p. 86 (Infobase Publishing 2006). Positive and negative numbers ''Brāhmasphuṭasiddhānta'' is one of the first books to provide concrete ideas on positive numbers, negative numbers, and zer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aryabhata I
Aryabhata ( ISO: ) or Aryabhata I (476–550 CE) was the first of the major mathematician-astronomers from the classical age of Indian mathematics and Indian astronomy. His works include the ''Āryabhaṭīya'' (which mentions that in 3600 ''Kali Yuga'', 499 CE, he was 23 years old) and the ''Arya-siddhanta''. For his explicit mention of the relativity of motion, he also qualifies as a major early physicist. Biography Name While there is a tendency to misspell his name as "Aryabhatta" by analogy with other names having the " bhatta" suffix, his name is properly spelled Aryabhata: every astronomical text spells his name thus, including Brahmagupta's references to him "in more than a hundred places by name". Furthermore, in most instances "Aryabhatta" would not fit the metre either. Time and place of birth Aryabhata mentions in the ''Aryabhatiya'' that he was 23 years old 3,600 years into the ''Kali Yuga'', but this is not to mean that the text was composed at that time. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
