Theon of Alexandria

Definition and stakes

Anne C. Lynch Botta Handbook of Universal Literature…

In the second class we have the substitution of prose romances for the bucolic and erotic poetry of the Alexandrian and Sicilian writers. In the third class the revival, by Nonnus and his followers, of a learned epos, of much the same kind as the poems of Callimachus. Among the representatives of the mathematical school of Alexandria was Theon, whose celebrity is obscured by that of his daughter Hypatia (fl. 415 A.D.) , whose sex, youth, beauty, and cruel fate have made her a most interesting martyr of philosophy.
Source: Gutenberg

Various Encyclopaedia Britannica, 11th Edition…

To the ignorant it was recommended by its conformity to crude common sense; to the learned, by the wealth of ingenuity expended in bringing it to perfection. The Almagest was the consummation of Greek astronomy. Ptolemy had no successor; he found only commentators, among the more noteworthy of whom were Theon of Alexandria (fl. A.D. 400) and his daughter Hypatia (370-415) . With the capture of Alexandria by Omar in 641, the last glimmer of its scientific light became extinct, to be rekindled, a century and a half later, on the banks of the Tigris.
Source: Gutenberg

by various authors Dictionary of Greek and Roman Biography and Mythology (1870)

Proclus mentions Heron and Pappus, and Aeneaa of Hierapolis, who made an epitome of the whole. Theon the younger (of Alexandria) lived a little before Proclus (who died about A. D. 485) . The latter has made his feeble commentary on the first book valuable by its his- torical information, and was something of a lumi- nary in ages more dark than his own. But Theon was a light of another sort, and his name has played a conspicuous and singular part in the his- tory of Euclid's writings.
Source: Wikisource

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