# De utilitate mathematicae 184

Theon Smyrnaeus, De utilitate mathematicae, Paragraph 184. Ancient Greek.

Canonical: https://interlinea.aeterna-institute.org/library/greek/theon-smyrnaeus/de-utilitate-mathematicae/184

ἀλλʼ ὅτι μὲν καθʼ ἑκατέραν τὴν ὑπόθεσιν, τὴν κατʼ ἔκκεντρον καὶ τὴν κατʼ ἐπίκυκλον, σώζεται τὰ φαινό- μενα, δείκνυσιν ἐκ τούτων. Ἵππαρχος δέ φησιν ἄξιον εἶναι μαθηματικῆς ἐπιστάσεως ἰδεῖν τὴν αἰτίαν διʼ ἣν τοσοῦτον διαφερούσαις ὑποθέσεσι, τῇ τε τῶν ἐκκέν- τρων κύκλων καὶ τῶν ὁμοκέντρων καὶ τῶν ἐπικύκλων, τὰ αὐτὰ φαίνεται ἀκολουθεῖν. δείκνυσι δὲ ὁ Ἄδραστος πρῶτον μὲν πῶς τῇ κατʼ ἐπίκυκλον ἕπεται κατὰ συμβε- βηκὸς ἡ κατὰ ἔκκεντρον· ὡς δὲ ἐγώ φημι, καὶ τῇ κατὰ ἔκκεντρον ἡ κατʼ ἐπίκυκλον.

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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/.