# De utilitate mathematicae 211

Theon Smyrnaeus, De utilitate mathematicae, Paragraph 211. Ancient Greek.

Canonical: https://interlinea.aeterna-institute.org/library/greek/theon-smyrnaeus/de-utilitate-mathematicae/211

Εὔδημος ἱστορεῖ ἐν ταῖς Ἀστρολογίαις, ὅτι Οἰνο- πίδης εὗρε πρῶτος τὴν τοῦ ζῳδιακοῦ διάζωσιν καὶ τὴν τοῦ μεγάλου ἐνιαυτοῦ περίστασιν· Θαλῆς δὲ ἡλίου ἔκλει- ψιν καὶ τὴν κατὰ τὰς τροπὰς αὐτοῦ περίοδον, ὡς οὐκ ἴση ἀεὶ συμβαίνει· Ἀναξίμανδρος δὲ ὅτι ἐστὶν ἡ γῆ μετέωρος καὶ κινεῖται περὶ τὸ τοῦ κόσμου μέσον· Ἀνα- ξιμένης δὲ ὅτι ἡ σελήνη ἐκ τοῦ ἡλίου ἔχει τὸ φῶς καὶ τίνα ἐκλείπει τρόπον. οἱ δὲ λοιποὶ ἐπὶ ἐξευρημένοις τού- τοις ἐπεξεῦρον ἕτερα· ὅτι οἱ ἀπλανεῖς κινοῦνται περὶ τὸν διὰ τῶν πόλων ἄξονα μένοντα, οἱ δὲ πλανώμενοι περὶ τὸν τοῦ ζῳδιακοῦ πρὸς ὀρθὰς ὄντα αὐτῷ ἄξονα, ἀπέχουσι δʼ ἀλλήλων ὅ τε τῶν ἀπλανῶν καὶ τῶν πλανω- μένων ἄξων πεντεκαιδεκαγώνου πλευρὰν ὅ ἐστι μοῖ- ραι κδʹ.

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Theon Smyrnaeus, De utilitate mathematicae, ed. Eduardus Hiller. Text: The Greek Library, from the Perseus Digital Library and other open sources, CC BY-SA 4.0. Changes: apostrophes normalised and the text divided into reading sections by Interlinea.
License: CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/). Source: https://thegreeklibrary.pages.lisn.upsaclay.fr/works/tlg1724.tlg001.local001/.