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Tantrasamgraha
Tantrasamgraha, or Tantrasangraha, (literally, ''A Compilation of the System'') is an important astronomical treatise written by Nilakantha Somayaji, an astronomer/mathematician belonging to the Kerala school of astronomy and mathematics. The treatise was completed in 1501 CE. It consists of 432 verses in Sanskrit divided into eight chapters. Tantrasamgraha had spawned a few commentaries: ''Tantrasamgraha-vyakhya'' of anonymous authorship and '' Yuktibhāṣā'' authored by Jyeshtadeva in about 1550 CE. Tantrasangraha, together with its commentaries, bring forth the depths of the mathematical accomplishments the Kerala school of astronomy and mathematics, in particular the achievements of the remarkable mathematician of the school Sangamagrama Madhava. In his ''Tantrasangraha'', Nilakantha revised Aryabhata's model for the planets Mercury and Venus. His equation of the centre for these planets remained the most accurate until the time of Johannes Kepler in the 17th century.G ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nilakantha Somayaji
Keļallur Nilakantha Somayaji (14 June 1444 – 1544), also referred to as Keļallur Comatiri, was a major mathematician and astronomer of the Kerala school of astronomy and mathematics. One of his most influential works was the comprehensive astronomical treatise ''Tantrasamgraha'' completed in 1501. He had also composed an elaborate commentary on Aryabhatiya called the ''Aryabhatiya Bhasya''. In this Bhasya, Nilakantha had discussed infinite series expansions of trigonometric functions and problems of algebra and spherical geometry. ''Grahapariksakrama'' is a manual on making observations in astronomy based on instruments of the time. Known popularly as Kelallur Chomaathiri, he is considered an equal to Vatasseri Parameshwaran Nambudiri. Early life Nilakantha was born into a Brahmin family which came from South Malabar in Kerala. Biographical details Nilakantha Somayaji was one of the very few authors of the scholarly traditions of India who had cared to record detai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paramesvara
Vatasseri Parameshvara Nambudiri ( 1380–1460) was a major Indian mathematician and astronomer of the Kerala school of astronomy and mathematics founded by Madhava of Sangamagrama. He was also an astrologer. Parameshvara was a proponent of observational astronomy in medieval India and he himself had made a series of eclipse observations to verify the accuracy of the computational methods then in use. Based on his eclipse observations, Parameshvara proposed several corrections to the astronomical parameters which had been in use since the times of Aryabhata. The computational scheme based on the revised set of parameters has come to be known as the ''Drgganita'' or Drig system. Parameshvara was also a prolific writer on matters relating to astronomy. At least 25 manuscripts have been identified as being authored by Parameshvara. Biographical details Parameshvara was a Hindu of Bhrgugotra following the Ashvalayanasutra of the Rigveda. Parameshvara's family name (''Illam'') was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Devanagari
Devanagari ( ; , , Sanskrit pronunciation: ), also called Nagari (),Kathleen Kuiper (2010), The Culture of India, New York: The Rosen Publishing Group, , page 83 is a left-to-right abugida (a type of segmental Writing systems#Segmental systems: alphabets, writing system), based on the ancient Brahmi script, ''Brāhmī'' script, used in the northern Indian subcontinent. It was developed and in regular use by the 7th century CE. The Devanagari script, composed of 47 primary characters, including 14 vowels and 33 consonants, is the fourth most widely List of writing systems by adoption, adopted writing system in the world, being used for over 120 languages.Devanagari (Nagari) , Script Features and Description, SIL International (2013), United States The orthography of this script reflects the pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chronogram
A chronogram is a sentence or inscription in which specific letters, interpreted as numerals (such as Roman numerals), stand for a particular date when rearranged. The word, meaning "time writing", derives from the Greek words ''chronos'' (χρόνος "time") and ''gramma'' (γράμμα, "letter"). In the ''pure chronogram'', each word contains a numeral; the ''natural chronogram'' shows all numerals in the correct numerical order, e.g. AMORE MATVRITAS = MMVI = 2006. Chronograms in versification are referred to as ''chronosticha'' if they are written in hexameter and ''chronodisticha'' if they are written in distich. In the ancient Indonesian Hindu-Buddhist tradition, especially in ancient Java, chronograms were called ''chandrasengkala'' and usually used in inscriptions to signify a given year in the Saka calendar. Certain words were assigned their specific number, and poetic phrases were formed from these selected words to describe particular events that have their own n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Damodara
Vatasseri Damodara Nambudiri was an astronomer-mathematician of the Kerala school of astronomy and mathematics who flourished during the fifteenth century CE. He was a son of Paramesvara (1360–1425) who developed the ''drigganita'' system of astronomical computations. The family home of Paramesvara was Vatasseri (sometimes called Vatasreni) in the village of Alathiyur, Tirur in Kerala. Damodara was a teacher of Nilakantha Somayaji Keļallur Nilakantha Somayaji (14 June 1444 – 1544), also referred to as Keļallur Comatiri, was a major mathematician and astronomer of the Kerala school of astronomy and mathematics. One of his most influential works was the comprehensi .... As a teacher he initiated Nilakantha into the science of astronomy and taught him the basic principles in mathematical computations. References {{Authority control Kerala school of astronomy and mathematics 15th-century Indian mathematicians People from Malappuram district Scientists from Ker ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Illam
Illam (), also referred to as Mana, is the Malayalam word for the house of a Namboodiri Brahmin. In the traditional lineage system used for the classification and identification of homes based on the castes of Kerala, South India, an Illam served as the ''tharavad'' (ancestral house) of Namboodiri Brahmin families. The Namboodiris, who constituted the highest ranking caste of Kerala, also refer to their lineages as the ''Brahmaalayam''. The family homes are built according to the canons of ''Vaasthusaasthram'', meaning "architecture" in the Sanskrit language. Structural layout The traditional layout of a Namboodiri Illam is in the form of an open courtyard which is located in the middle, known as the ''Nadumittam'' ('nadu' meaning middle and 'mittam' meaning earth/ground). These buildings or houses are designed in different patterns such as ''Nalukettu'' (a courtyard surrounded by rooms on four sides), ''Ettukettu'' (a ''nalukettu'' surrounded by another ''nalukettu''), an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kerala
Kerala ( ; ) is a state on the Malabar Coast of India. It was formed on 1 November 1956, following the passage of the States Reorganisation Act, by combining Malayalam-speaking regions of the erstwhile regions of Cochin, Malabar, South Canara, and Thiruvithamkoor. Spread over , Kerala is the 21st largest Indian state by area. It is bordered by Karnataka to the north and northeast, Tamil Nadu to the east and south, and the Lakshadweep Sea to the west. With 33 million inhabitants as per the 2011 census, Kerala is the 13th-largest Indian state by population. It is divided into 14 districts with the capital being Thiruvananthapuram. Malayalam is the most widely spoken language and is also the official language of the state. The Chera dynasty was the first prominent kingdom based in Kerala. The Ay kingdom in the deep south and the Ezhimala kingdom in the north formed the other kingdoms in the early years of the Common Era (CE). The region had been a prominent spic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tirur
Tirur is a Municipality in Malappuram district in the Indian state of Kerala spread over an area of . It is one of the business centers of Malappuram district and is situated west of Malappuram and south of Kozhikode, on the Shoranur–Mangalore section under Southern Railway. Tirur is also a major regional trading centre for fish and betel leaf and has an average elevation of . Demographics India census, Tirur had a population of 53,650, of which 48% are male and 52% female. Tirur has an average literacy rate of 80%, higher than the national average of 59.5%: male literacy is 81%, and female literacy is 78%. In Tirur, 14% of the population is under six years of age. Tirur assembly constituency is part of Ponnani (Lok Sabha constituency). Transportation *Railway Station: Tirur railway station is one of the major railway stations in the Malabar region. Almost every train stops here, connecting the Malappuram district to the rest of the country. *Road: Tirur is well connected ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gotra
In Hindu culture, the term gotra (Sanskrit: गोत्र) is considered to be equivalent to lineage. It broadly refers to people who are descendants in an unbroken male line from a common male ancestor or patriline. Generally, the gotra forms an exogamous unit, with marriage within the same gotra being regarded as incest and prohibited by custom. The name of the gotra can be used as a surname, but it is different from a surname and is strictly maintained because of its importance in marriages among Hindus, especially among castes. Pāṇini defines ''gotra'' as ''apatyam pautraprabhrti gotram'' (IV. 1. 162), which means "the word ''gotra'' denotes the descendance (or descendants), ''apatya'', of a couple consisting of a ''pautra'', a son and a ''bharti'', a mother, i.e. a daughter-in-law." (Based on Monier Williams Dictionary definitions.) When a person says "I am Vipparla-gotra", he means that he traces his descent to the ancient sage Vipparla by an unbroken male descent. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nambudiri
The Nambudiri (), also transliterated as Nampoothiri, Nambūdiri, Namboodiri, Nampoothiri, and Nampūtiri, are a Malayali Brahmin caste, native to what is now the state of Kerala, India, where they constituted part of the traditional feudal elite, owning a large portion of the land in the region of Malabar until the Kerala Land Reforms starting in 1957, and intermarrying with the Nair monarchs and aristocracy through sambandham. They have historically been distinguished by rare practices such as the adherence to Śrauta ritualism, the Pūrva-Mīmāṁsā school of Hindu philosophy, and orthodox tradition, as well as many idiosyncratic customs unique among Brahmins, including primogeniture. Cyriac Pullapilly mentions that the dominating influence of the Nambudiris was to be found in all matters: religion, politics, society, economics and culture of Kerala. History Origin Nambudiri mythology associates their immigration to Kerala from the banks of Narmada, Krishna, Kaveri r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sankara Varman
Sankara Varman (1774–1839) was an astronomer-mathematician belonging to the Kerala school of astronomy and mathematics. He is best known as the author of Sadratnamala, a treatise on astronomy and mathematics, composed in 1819. Sankara Varman is considered as the last notable figure in the long line of illustrious astronomers and mathematicians in the Kerala school of astronomy and mathematics beginning with Madhava of Sangamagrama. Sadratnamala was composed in the traditional style followed by members of the Kerala school at a time when India had been introduced to the western style of mathematics and of writing books in mathematics. One of Varman's contribution to mathematics was his computation of the value of the mathematical constant π correct to 17 decimal places. Biographical sketch Varman was born as a younger prince in the principality of Katattanad, in North Malabar, Kerala, in the year 1774. He had two elder brothers, the eldest being Raja Udaya varma, the rule ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sadratnamala
''Sadratnamala'' is an astronomical-mathematical treatise in Sanskrit written by Sankara Varman, an astronomer-mathematician of the Kerala school of mathematics, in 1819. Even though the book has been written at a time when western mathematics and astronomy had been introduced in India, it is composed purely in the traditional style followed by the mathematicians of the Kerala school. Sankara Varman has also written a detailed commentary on the book in Malayalam. Sadratnamala is one of the books cited in C. M. Whish Charles Matthew Whish (1794–1833) was an English civil servant in the Madras Establishment of the East India Company. Whish was the first to bring to the notice of the western mathematical scholarship the achievements of the Kerala school o ...'s paper on the achievements of the Kerala school of mathematics. This paper published in the ''Transactions of the Royal Asiatic Society of Great Britain and Ireland'' in 1834, was the first ever attempt to bring t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
