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Vaṭeśvara
Vaṭeśvara ( sa, वटेश्वर ) (born 880), was a tenth-century Indian mathematician from Kashmir who presented several trigonometric identities. He was the author (at the age of 24) of '' 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 given as Anandapura which is now 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 the ed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vaṭeśvara-siddhānta
Vaṭeśvara-siddhānta is a mathematical and astronomical treatise by Vaṭeśvara in India in 904. This treatise contains fifteen chapters on astronomy and applied mathematics. Mathematical exercises are included for students to show their comprehension of the text.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 the editor of several bestselling books. Career Selin attended Binghamton University, where she earned her bachelor's degree. She received her MLS from SUNY Alb ..., Springer, References * K. S. Shukla, "Ancient Indian Mathematical Astronomy Eleven Centuries ago (Vateswara Siddanta of Vateshwaracharya 880 AD)", Indian Institute of Scientific Heritage (IISH) Indian mathematics {{mathematics-lit-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
India
India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the south, the Arabian Sea on the southwest, and the Bay of Bengal on the southeast, it shares land borders with Pakistan to the west; China, Nepal, and Bhutan to the north; and Bangladesh and Myanmar to the east. In the Indian Ocean, India is in the vicinity of Sri Lanka and the Maldives; its Andaman and Nicobar Islands share a maritime border with Thailand, Myanmar, and Indonesia. Modern humans arrived on the Indian subcontinent from Africa no later than 55,000 years ago., "Y-Chromosome and Mt-DNA data support the colonization of South Asia by modern humans originating in Africa. ... Coalescence dates for most non-European populations average to between 73–55 ka.", "Modern human beings—''Homo sapiens''—originated in Africa. Then, int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aryabhata
Aryabhata (ISO: ) or Aryabhata I (476–550 CE) was an Indian mathematician and astronomer of the classical age of Indian mathematics and Indian astronomy. He flourished in the Gupta Era and produced works such as the ''Aryabhatiya'' (which mentions that in 3600 ''Kali Yuga'', 499 CE, he was 23 years old) and the ''Arya-siddhanta.'' Aryabhata created a system of phonemic number notation in which numbers were represented by consonant-vowel monosyllables. Later commentators such as Brahmagupta divide his work into ''Ganita ("Mathematics"), Kalakriya ("Calculations on Time") and Golapada ("Spherical Astronomy")''. His pure mathematics discusses topics such as determination of square and cube roots, geometrical figures with their properties and mensuration, arithmetric progression problems on the shadow of the gnomon, quadratic equations, linear and indeterminate equations. Aryabhata calculated the value of pi (''π)'' to the fourth decimal digit and was likely aware that p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Year Of Death Unknown
A year or annus is the orbital period of a planetary body, for example, the Earth, moving in its orbit around the Sun. Due to the Earth's axial tilt, the course of a year sees the passing of the seasons, marked by change in weather, the hours of daylight, and, consequently, vegetation and soil fertility. In temperate and subpolar regions around the planet, four seasons are generally recognized: spring, summer, autumn and winter. In tropical and subtropical regions, several geographical sectors do not present defined seasons; but in the seasonal tropics, the annual wet and dry seasons are recognized and tracked. A calendar year is an approximation of the number of days of the Earth's orbital period, as counted in a given calendar. The Gregorian calendar, or modern calendar, presents its calendar year to be either a common year of 365 days or a leap year of 366 days, as do the Julian calendars. For the Gregorian calendar, the average length of the calendar year (the mea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
10th-century Indian Mathematicians
1 (one, unit, unity) is a number representing a single or the only entity. 1 is also a numerical digit and represents a single unit of counting or measurement. For example, a line segment of ''unit length'' is a line segment of length 1. In conventions of sign where zero is considered neither positive nor negative, 1 is the first and smallest positive integer. It is also sometimes considered the first of the infinite sequence of natural numbers, followed by 2, although by other definitions 1 is the second natural number, following 0. The fundamental mathematical property of 1 is to be a multiplicative identity, meaning that any number multiplied by 1 equals the same number. Most if not all properties of 1 can be deduced from this. In advanced mathematics, a multiplicative identity is often denoted 1, even if it is not a number. 1 is by convention not considered a prime number; this was not universally accepted until the mid-20th century. Additionally, 1 is the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
880 Births
88 may refer to: * 88 (number) * one of the years 88 BC, AD 88, 1888 CE, 1988 CE, 2088 CE, etc. * "88", a song by Sum 41 from '' Chuck'' * "88", a song by The Cool Kids from ''The Bake Sale'' * The 88, an American indie rock band * ''The 88'' (album), the 2003 debut album by New Zealand band Minuit * Highway 88, see List of highways numbered 88 * The 88 (San Jose), a residential skyscraper in San Jose, California, USA * The 88, a nickname for the piano derived from the number of keys it typically has * A Morse code abbreviation meaning "Love and kisses" * 88 Generation Students Group, a Burmese pro-democracy movement * 8.8 cm Flak 18/36/37/41, known as ''the eighty-eight'', a German anti-tank and anti-aircraft gun from World War II * ''88'' (film), a 2015 film directed by April Mullen, starring Katharine Isabelle * Atomic number 88: radium * The butterfly genus ''Diaethria'', which has an 88-like pattern on its wings * The butterfly genus ''Callicore'', which has an 88-like pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helaine Selin
Helaine Selin (born 1946) is an American librarian, historian of science, author and the editor of several bestselling books. Career Selin attended Binghamton University, where she earned her bachelor's degree. She received her MLS from SUNY Albany. She was a Peace Corps volunteer from the fall of 1967 through the summer of 1969 as an English teacher in Malawi. She retired in 2012 from being the science librarian at Hampshire College. Selin is well known for being the editor of ''Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures'' (1997) which is one of the first books which allows readers to "compare a variety of traditional systems of mathematics and cosmologies." ''Mathematics Across Cultures: The History of Non-Western Mathematics'' (2000), is considered by ''Mathematical Intelligencer'' as a companion to the ''Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures''. The journal, ''Mathematics and Com ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Encyclopaedia Of The History Of Science, Technology, And Medicine In Non-Western Cultures
''Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures'' is an encyclopedia edited by Helaine Selin and published by Kluwer Academic Publishers in 1997, with a second edition in 2008, and third edition in 2016. Summary From the Preface: :The purpose of the ''Encyclopaedia'' is to bring together knowledge of many disparate fields in one place to legitimize the study of other cultures' science... The Western academic divisions of science, technology and medicine have been united in the ''Encyclopaedia'' because in ancient cultures these disciplines were connected. The first edition (1997) has 600 articles by a range of experts. The arrangement is alphabetical from "Abacus" to "Zu Chongzi". It includes an index from page 1079 to page 1117. K. V. Sarma contributed 35 articles, Greg De Young 13, Boris A. Rosenfeld 12, and Emilia Calvo and Ho Peng Yoke 11 each. Fabrizio Pregadio contributed 10 articles, Julio Samo wrote 9, and Richard Bertschinger, Ra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shaka Era
The Shaka era (IAST: Śaka, Śāka) is a historical Hindu calendar era (year numbering), the epoch (its year zero) of which corresponds to Julian year 78. The era has been widely used in different regions of India as well as in SE Asia. History There are two Shaka era systems in scholarly use, one is called ''Old Shaka Era'', whose epoch is uncertain, probably sometime in the 1st millennium BCE because ancient Buddhist and Jaina inscriptions and texts use it, but this is a subject of dispute among scholars. The other is called ''Saka Era of 78 CE'', or simply ''Saka Era'', a system that is common in epigraphic evidence from southern India. A parallel northern India system is the ''Vikrama Era'', which is used by the Vikrami calendar linked to Vikramaditya. The beginning of the Shaka era is now widely equated to the ascension of king Chashtana in 78 CE. His inscriptions, dated to the years 11 and 52, have been found at Andhau in Kutch region. These years are interpreted as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vadnagar
Vadnagar is a town and municipality in the Mehsana district of the state of Gujarat in India. It just about 35 km from Mehsana city. Its ancient name was Anartapura, and was also known as Anandapura. It was a Buddhist location visited by Xuanzang in 640 C.E. Historian and archaeologist Alexander Cunningham has identified Anandapura with the town of Vadnagar. Vadnagar is also the birthplace of the current Prime Minister of India Narendra Modi. History Several ancient inscriptions and literary sources mention a town called Anartapura or Anandapura, identified as the area in and around the present-day Vadnagar. The epic tale Mahabharata mentions the Anarta Kingdom in the northern part of present-day Gujarat. The oldest Puranic legend about Gujarat is about a king named Anartha. The town is mentioned in the Tirtha Mahatmya section of Nagara Khanda of Skanda Purana by the name of Chamatkarapura. The Junagadh rock inscription (dating from 150 C.E.) of Western Kshatrapa King Ru ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Al-Biruni
Abu Rayhan Muhammad ibn Ahmad al-Biruni (973 – after 1050) commonly known as al-Biruni, was a Khwarazmian Iranian in scholar and polymath during the Islamic Golden Age. He has been called variously the "founder of Indology", "Father of Comparative Religion", "Father of modern geodesy", and the first anthropologist. Al-Biruni was well versed in physics, mathematics, astronomy, and natural sciences, and also distinguished himself as a historian, chronologist, and linguist. He studied almost all the sciences of his day and was rewarded abundantly for his tireless research in many fields of knowledge. Royalty and other powerful elements in society funded Al-Biruni's research and sought him out with specific projects in mind. Influential in his own right, Al-Biruni was himself influenced by the scholars of other nations, such as the Greeks, from whom he took inspiration when he turned to the study of philosophy. A gifted linguist, he was conversant in Khwarezmian, Persian, Ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brahmagupta
Brahmagupta ( – ) was an Indian mathematician and astronomer. He is the author of two early works on mathematics and astronomy: the ''Brāhmasphuṭasiddhānta'' (BSS, "correctly established doctrine of Brahma", dated 628), a theoretical treatise, and the '' Khaṇḍakhādyaka'' ("edible bite", dated 665), a more practical text. Brahmagupta was the first to give rules for computing with ''zero''. The texts composed by Brahmagupta were in elliptic verse in Sanskrit, as was common practice in Indian mathematics. As no proofs are given, it is not known how Brahmagupta's results were derived. In 628 CE, Brahmagupta first described gravity as an attractive force, and used the term "gurutvākarṣaṇam (गुरुत्वाकर्षणम्)" in Sanskrit to describe it. Life and career Brahmagupta was born in 598 CE according to his own statement. He lived in ''Bhillamāla'' in Gurjaradesa (modern Bhinmal in Rajasthan, India) during the reign of the Chavda dynasty ruler, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
