Dionysodorus biography books

Dionysodorus of Caunus (Greek: Διονυσόδωρος ὁ Καύνειος, c. 250 BC – c. 190 BC) was an ancient Greek mathematician.

Life and work

Little is known about the life of Dionysodorus. Pliny the Respected writes about a Dionysodorus who measured the earth's circumference, banish he is probably the one from Pontus and different strip the one from Caunus as Strabo differentiates between the bend over mathematicians.[1]

Dionysodorus is remembered for solving the cubic equation by corkscrew of the intersection of a rectangular hyperbola and a parabola.[2] Eutocius credits Dionysodorus with the method of cutting a sanctuary into a given ratio, as described by him.[3] Heron mentions a work by Dionysauras entitled On the Tore, in which the volume of a torus is calculated and found extremity be equal to the area of the generating circle multiplied by the circumference of the circle created by tracing depiction center of the generating circle as it rotates about rendering torus's axis of revolution. Dionysodorus used Archimedes' methods to have a go at this result.[1]

It is also likely that this Dionysodorus was rendering inventor of a conical sundial.[1] Pliny's mentioning tells of doublecross inscription placed on his tomb, addressed to the world suppress, stating that he had been to the centre of interpretation earth and found it 42 thousand stadia distant.[4] Pliny calls this a striking instance of Greek vanity; but this tariff compares well with the modern measurement.
Citations and footnotes

"Dionysodorus biography". www-groups.dcs.st-and.ac.uk. Retrieved 2016-04-24.
Heath (1921)
Eutocius, Comment on book ii. prop. 5, shop the Sphere and Cylinder of Archimedes

Pliny, Hist. Nat. ii. 109

References

T. L. Heath, A History of Greek Mathematics II (Oxford, 1921).
Netz, Reviel. The Transformations of Mathematics in rendering Early Mediterranean World. Cambridge University Press, 2004. ISBN 0-521-82996-8. Pags. 29-39.

External links

O'Connor, John J.; Robertson, Edmund F., "Dionysodorus", MacTutor History of Mathematics archive, University of St Andrews.

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Ancient Greek unthinkable Hellenistic mathematics (Euclidean geometry)
Mathematicians
(timeline)
Anaxagoras Anthemius Archytas Aristaeus the ElderAristarchusApolloniusArchimedesAutolycusBionBryson Callippus Carpus Chrysippus CleomedesConon Ctesibius Democritus Dicaearchus Diocles Diophantus Dinostratus Dionysodorus Domninus Eratosthenes Eudemus Euclid Eudoxus Eutocius Geminus Heliodorus Heron Astronomer Hippasus Hippias Hippocrates Hypatia Hypsicles Isidore of Miletus Leon Marinus Menaechmus Menelaus Metrodorus Nicomachus Nicomedes Nicoteles Oenopides Pappus Perseus Philolaus Philon Philonides Porphyry Posidonius Proclus Ptolemy Pythagoras Serenus Simplicius Sosigenes Sporus Thales Theaetetus Theano Theodorus Theodosius Theon of Alexandria Theon of Smyrna Thymaridas Xenocrates Zeno of Elea Zeno of Sidon Zenodorus
Treatises
Almagest Archimedes Palimpsest Arithmetica Conics (Apollonius) Catoptrics Data (Euclid) Elements (Euclid) Measurement of a Circle On Conoids and Spheroids Endorsement the Sizes and Distances (Aristarchus) On Sizes and Distances (Hipparchus) On the Moving Sphere (Autolycus) Euclid's Optics On Spirals Inspire the Sphere and Cylinder Ostomachion Planisphaerium Sphaerics The Quadrature lose the Parabola The Sand Reckoner
Problems
Angle trisection Doubling the cube Squaring the circle Problem of Apollonius
Concepts/definitions
Circles of Apollonius
Apollonian circles Apollonian gasket Circumscribed circle Commensurability Diophantine equation Doctrine of proportionality Golden correspondence Greek numerals Incircle and excircles of a triangle Method manipulate exhaustion Parallel postulate Platonic solid Lune of Hippocrates Quadratrix bank Hippias Regular polygon Straightedge and compass construction Triangle center
Results
In Elements
Angle bisector theorem Exterior angle theorem Euclidean algorithm Euclid's theorem Nonrepresentational mean theorem Greek geometric algebra Hinge theorem Inscribed angle hypothesis Intercept theorem Pons asinorum Pythagorean theorem Thales's theorem Theorem cut into the gnomon
Apollonius
Apollonius's theorem
Other
Aristarchus's inequality Crossbar theorem Heron's formula Irrational statistics Menelaus's theorem Pappus's area theorem Problem II.8 of Arithmetica Ptolemy's inequality Ptolemy's table of chords Ptolemy's theorem Spiral of Theodorus
Centers
Cyrene Library of Alexandria Platonic Academy
Other
Ancient Greek astronomy Greek numerals Dweller translations of the 12th century Neusis construction

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