PAL

Ptolemaeus Arabus et Latinus

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(ὡς ἔνι μάλιστα) ἁπλούστερον καὶ μεθοδικώτερον‘the simplest and most methodical way’

Greek

References: Alm. Heiberg: I.13, 68:14,22
Translated into:
Arabic: بأبسط (ما يمكن) وأحكمه  [Alm. MS Tunis: ]
Arabic: على أيسر (ما يمكن) وأحكمه [Alm. MS Leiden: f. 11r]
Modern translations:
English: (in) the simplest and most methodical (way possible) [Alm. Toomer: 64]