1 2 εἰς τὸ αὐτό, οἷον τὰ ιϛ καὶ τὰ η· γίνονται κδ. λαβὲ τὸ U+2220ʹ τῶν λϛ· γίνονται ιη· ὁμοίως καὶ τῶν κδ τὸ U+2220΄· γίνονται ιβ. πολυπλασίασον ταῦτα ἐπὶ τὰ ιη· γίνονται σιϛ.
Stereometrica. Hero of Alexandria. ed. Johan Ludvig Heiberg. United States. 2018.
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