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Hero of Alexandria (/ ˈ h ɪər oʊ /; Ancient Greek: Ἥρων [a] ὁ Ἀλεξανδρεύς, Hērōn hò Alexandreús, also known as Heron of Alexandria / ˈ h ɛr ən /; probably 1st or 2nd century AD) was a Greek mathematician and engineer who was active in Alexandria in Egypt during the Roman era.
Theon of Alexandria (/ ˌ θ iː ə n,-ɒ n /; Ancient Greek: Θέων ὁ Ἀλεξανδρεύς; c. AD 335 – c. 405) was a Greek [1] scholar and mathematician who lived in Alexandria, Egypt.
Heron's formula can be obtained from Brahmagupta's formula or Bretschneider's formula by setting one of the sides of the quadrilateral to zero. Brahmagupta's formula gives the area K {\displaystyle K} of a cyclic quadrilateral whose sides have lengths a , {\displaystyle a,} b , {\displaystyle b,} c , {\displaystyle c ...
Leonidas Alaoglu (1914–1981) - Known for Banach- Alaoglu theorem. [9]Charalambos D. Aliprantis (1946–2009) - Founder and Editor-in-Chief of the journals Economic Theory as well as Annals of Finance.
Heron of Alexandria (c. 10 –70 AD) is credited with Heron's formula for finding the area of a scalene triangle and with being the first to recognize the possibility of negative numbers possessing square roots. [77] Menelaus of Alexandria (c. 100 AD) pioneered spherical trigonometry through Menelaus' theorem. [78]
Third order equation Yi Jia Tang "Six Book Nine Chapters" positive and negative opening power map. Qin Jiushao (Chinese: 秦九韶; pinyin: Qín Jiǔsháo; Wade–Giles: Ch'in Chiu-shao, ca. 1202–1261), courtesy name Daogu (道古), was a Chinese mathematician, meteorologist, inventor, politician, and writer.
The MacTutor History of Mathematics Archive is a website maintained by John J. O'Connor and Edmund F. Robertson and hosted by the University of St Andrews in Scotland.It contains detailed biographies on many historical and contemporary mathematicians, as well as information on famous curves and various topics in the history of mathematics.
In July 1935, Bell signed a contract with Simon and Schuster, for a book to be titled The Lives of Mathematicians. [1] He delivered the manuscript at the beginning of November 1935 as promised, but was unhappy when the publishers made him cut about a third of it (125,000 words), and, in order to tie in with their book Men of Art (by Thomas Craven), gave it the title Men of Mathematics which he ...