PAL

Ptolemaeus Arabus et Latinus

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ἡ ὑπὸ τὴν διπλῆν τῆς (ΑΒ) περιφερείας ‘chord arc 2·AB’

Greek

References: Alm. Heiberg: I.13, 71
Translated into:
Arabic: وتر القوس التي هي ضعف قوس ’اب‘ [Alm. MS Tunis: ?]
Arabic: وتر ضعف قوس ’اب‘ [Alm. MS Leiden: f. 11v]
Modern translations:
English: chord arc 2·AB [Alm. Toomer: 65]