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Spherical geometry khan academy
Spherical geometry khan academy






spherical geometry khan academy

  • The Phaenomena: a work of astronomy and spherical geometry which still exists.
  • It was well-known to Archimedes who quoted it extensively.
  • The Conics: now lost, but according to Pappus may have been the basis of the work of the same name by Apollonius.
  • The Surface-Loci (mentioned by Pappus, now considered lost): may have concerned surfaces of revolution.
  • The Porisms: a collection of theorems and problems in more advanced geometry.
  • spherical geometry khan academy

  • On Divisions (of Figures) (mentioned by Proclus, lost in Greek but survived in Arabic): concerns dissection of geometric figures.
  • The Data: elementary exercises in analysis, supplementary to The Elements.
  • spherical geometry khan academy

  • The Pseudaria (or Pseudographemata) (referred to by Proclus, believed irreparably lost): a more elementary primer on geometry.
  • Results named for Euclid can be found here.ĭefinitions of concepts named for Euclid can be found here.
  • Euclid Numbers (erroneously so named - such numbers derive from a version of the proof of Euclid's Theorem that he himself never made.).
  • Euclidean Metric, Euclidean Space and Euclidean Topology.
  • Several concepts are named after him, but they were so named because they possess properties inherited from concepts which Euclid introduced: Not to be confused with the Socratic philosopher Euclid of Megara. (See Bourbaki for a modern example of this.) It has been suggested that the name Euclid was a pseudonym for a team of mathematicians working as a team. There is controversy as to whether he did actually exist.
  • He assembled the geometry text The Elements, possibly the most famous mathematics text book of all time.
  • He taught in Alexandria (then a Macedonian colony, the hub of the Hellenic world).
  • Greek mathematician about whom little is known, apart from:








    Spherical geometry khan academy