“ NICOMACHUS, a Neo-Pythagorean philosopher and mathematician, born at Gerasa in Arabia Petraea, flourished about A.D. 100. In his musical treatise he mentions Thrasyllus (d. 36) , the astrologer and confidant of Tiberius, and his Arithmetic was translated by Apuleius, who wrote under Antoninus Pius and Marcus Aurelius. ”