In the richness of its contents and in the application of arithmetical and algebraic methods to the solution of various problems, including several geometric ones, and in the clarity and elegance of exposition, this voluminous textbook is one of the best in the whole of medieval literature; it attests to both the author's erudition and his pedagogical ability.
Rikastamisel selle sisu ja kohaldamise matemaatiline ja algebraline meetodid lahus mitmeid probleeme, sealhulgas mitmed geomeetrilised riske, ning selguse ja elegants käsiraamatus see mahukas õpik on üks parimaid kogu keskaja kirjandus ; see kinnitab, et nii autori eruditsioon ja tema pedagoogiline oskus.