KnowraEquantLinked fromLinked fromThe 14 pages that link to Equant, each with the reason it gives.All 14Broader topic 6Related 3Compared with 5PtolemyBroader topic: Ptolemy used the equant to improve predictions while departing from uniform motion centered on the deferent.AlmagestBroader topic: Ptolemy used this device to model changing planetary speeds.Ptolemaic systemBroader topic: Ptolemy used it to improve predictions of changing planetary speed.Ancient Greek astronomyBroader topic: Ptolemy used the equant to model nonuniform planetary motion while preserving geometric regularity.GeocentrismBroader topic: Ptolemy used it to improve predictions while departing from uniform motion around Earth.Claudius PtolemyBroader topic: Ptolemy used the equant to model changing planetary speeds while preserving uniform motion around an offset point.