δ΄ ιβ΄, καὶ πεντάκις δ΄ κ΄· καὶ τὰ μὲν ιβ΄ διχῆ διαιρεῖ- ται 〈εἰς〉 ϛ΄ καὶ ϛ΄, τριχῇ δὲ εἰς δ΄ καὶ δ΄ καὶ δ΄, τετραχῆ δὲ εἰς τετράκις γ΄· τὰ δὲ κ΄ διχῆ μὲν εἰς ι΄, τετραχῆ δὲ εἰς ε΄, πενταχῆ δὲ εἰς δ΄.
De utilitate mathematicae. Theon Smyrnaeus. ed. Eduardus Hiller. United States. 2016.
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