The Key to Computation
The Key to Computation (Miftah al-hisab)
- Description:
- Folios 51 recto, 52 verso: Balance Mechanism and Specific Weights Chart
- Author:
- Al-Kashi (ca. 1380–1429)
- Copyist:
- Nur al-Din Muhammad ibn Taj al-Din Husayn al-Husayni
- Language:
- Arabic
- Medium:
- Ink on paper
- Location:
- Iran
- Dimensions:
- Folio: H. 21.8 cm; W. 13.1 cm
- Date:
- 1559
- Inventory Number:
- Ms. Yah. Ar. 224
- Lender:
- National Library of Israel
- Credit:
- From the collections of The National Library of Israel
National Library of Israel