Ancient Greek text
α. Οἱ παλαιοὶ καὶ πρῶτοι μεθοδεύσαντες ἐπιστήμην κατάρξαντος Πυθαγόρου …
Introductio arithmetica, Teubner, Leipzig, 1866
Nicomachus of Gerasa, Ἀριθμητικὴ εἰσαγωγή, ed. Richard Hoche. 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.
Texts from The Greek Library and the Perseus Digital Library, under CC BY-SA 4.0 and CC BY 4.0. Divided into reading sections by Interlinea.