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Theodorus of Cyrene information


Theodorus of Cyrene (Greek: Θεόδωρος ὁ Κυρηναῖος, translit. Theódōros ho Kyrēnaîos) was an ancient Greek mathematician who lived during the 5th century BC. The only first-hand accounts of him that survive are in three of Plato's dialogues: the Theaetetus, the Sophist, and the Statesman. In the former dialogue, he posits a mathematical construction now known as the Spiral of Theodorus.

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Theodorus of Cyrene

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Theodorus of Cyrene (Greek: Θεόδωρος ὁ Κυρηναῖος, translit. Theódōros ho Kyrēnaîos) was an ancient Greek mathematician who lived during the 5th century...

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Spiral of Theodorus

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composed of right triangles, placed edge-to-edge. It was named after Theodorus of Cyrene. The spiral is started with an isosceles right triangle, with each...

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Theodorus the Atheist

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Theodorus "the Atheist" (Greek: Θεόδωρος ὁ ἄθεος, translit. Theódōros ho átheos; c. 340 – c. 250 BCE), of Cyrene, was a Greek philosopher of the Cyrenaic...

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Square root of 3

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It is also known as Theodorus' constant, after Theodorus of Cyrene, who proved its irrationality. As of December 2013[update], its numerical value in decimal...

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Hippasus

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{2}}} , the square root of 2. Plato in his Theaetetus, describes how Theodorus of Cyrene (c. 400 BC) proved the irrationality of 3 {\displaystyle {\sqrt...

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List of scientific constants named after people

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constant – Jožef Stefan and Ludwig Boltzmann Theodorus' constant (√3 ≅ ±1.732050807568877...) – Theodorus of Cyrene Tupper's number – Jeff Tupper Viswanath's...

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Theodoros

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Theodorus of Samos, 6th-century BC Greek sculptor, architect and inventor Theodorus of Cyrene, 5th-century BC Libyan Greek mathematician Theodorus of...

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List of Libyans

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Libya Theodorus of Cyrene (c. 5th century BC), mathematician Ahmed K. Elmagarmid (born 1954), computer scientist Hegesias of Cyrene Antipater of Cyrene Anniceris...

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Egyptian Greeks

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University of Alexandria, regarding Archeometry research and contextual sectors. Number of Greeks according to the Census in Egypt. Greeks of Cyrene (the Cyrenaica...

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Irrational number

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exhaustion is the first step in the creation of calculus. Theodorus of Cyrene proved the irrationality of the surds of whole numbers up to 17, but stopped there...

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List of ancient Greeks

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playwright Theodorus of Samos – sculptor Theodorus of Cyrene – mathematician Theodorus of Gadara – rhetor Theodotus of Byzantium – theologian Theognis of Megara...

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List of Greek mathematicians

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Pythagoras Serenus of Antinouplis Simplicius of Cilicia Sporus of Nicaea Thales Theaetetus Theano Theodorus of Cyrene Theodosius of Bithynia Theon of Alexandria...

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Euhemerism

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creatures of "absurd forms" such as Centaurs and the Chimera could not easily be explained. In the ancient skeptic philosophical tradition of Theodorus of Cyrene...

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Quadratic irrational number

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square root of 2 was the first such number to be proved irrational. Theodorus of Cyrene proved the irrationality of the square roots of non-square natural...

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Timeline of mathematics

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and also calculates the square root of 2 correct to five decimal places. 5th c. BC – Greece, Theodorus of Cyrene 5th century – Greece, Antiphon the Sophist...

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Cyrenaics

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hedonist Greek school of philosophy founded in the 4th century BCE, supposedly by Aristippus of Cyrene, although many of the principles of the school are believed...

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Exclusivism

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Stilpo, Theodorus of Cyrene, Aristotle, and Theophrastus were accused of impiety under this decree. Socrates was found guilty of the charge of introducing...

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Socrates the Younger

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dates of which place his birth less than two decades prior. In the Theaetetus, his character is a student of the mathematician Theodorus of Cyrene and interested...

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List of philosophers born in the centuries BC

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(360-290 BC)[a] Su Qin (380-284 BC) Thales, (c. 635 BC-543 BC)[a][b][c][d] Theodorus of Cyrene, (c. 340-c. 250 BC) Theophrastus, (372-287 BC)[b][c][d] Thrasymachus...

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Arete of Cyrene

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were Theodorus the Atheist and Anniceris. While no credible historic source has survived on Arete's teachings, the tenets of the School of Cyrene which...

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Aristippus

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Aristippus of Cyrene (/ˌærəˈstɪpəs/; Ancient Greek: Ἀρίστιππος ὁ Κυρηναῖος; c. 435 – c. 356 BCE) was a hedonistic Greek philosopher and the founder of the Cyrenaic...

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Hegesias of Cyrene

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Ἡγησίας; fl. 290 BC) of Cyrene was a Cyrenaic philosopher. He argued that eudaimonia (happiness) is impossible to achieve, and that the goal of life should be...

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