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Excelsior
SpaceTime Mathematics
Ephemeron Industries
Jay Nick
Agil Mente
Michal Mecinski
Rene Grothmann
GraphNow Software
Joustra Software
Ariya Hidayat
Wiris
Universitat Bayreuth
GraphNow Software
4x4 Software
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Singleton Software
HelpSmith.com
Miguel Conde
Matematiği keşfetmenize yardım etmek için dinamik geometri