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The Key to Computation

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