Abushakir; computational treatise, “Sea of computation”

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GG-033

On the front cover: ኣቡሻከር / ባህረ ሃሳብ / [᾽Abušakär (sic! for ᾽Äbušakər) Bahrä-hasab]

Michael Gervers (researcher)

Witold Witakowski (data contributor)

Abū Šakir b. Abī l-Karim Buṭrus b. al Muhadhdhib Ibn ar-Rāhib (c. 1200-95, Egypt) (author)

Numerous tables and circles - parts of the computational method; Cf. GG-32

Number of folios: 35; European foliation; Number of quires: 8 (?); Number of columns of the text: 1-2; (most of the folios are not covered with text, but with computational tables and circles); Number of lines in columns: varying: 28-29, 43

Computus

Ethiopia

Tigray