[Ḥaṭṭ al-niqāb ʻan wujūh aʻmāl al-ḥisāb]. = [حط النقاب عن وجوه اعمال الحساب].
- [Morocco?, between 14--? and 16--?]
159 leaves : paper ; 268 x 195 (205 x 135) mm bound to 274 x 208 mm.
- Ibn al-Bannāʼ, Aḥmad ibn Muḥammad, 1256?-1321? Talkhīṣ aʻmāl al-ḥisāb.
Arithmetic -- Early works to 1800.
Mathematics, Arab -- Early works to 1800.
- Manuscripts, Arabic -- 15th century.
Manuscripts, Arabic -- 16th century.
- Commentary on the summary of arithmetical operations by the late 13th- and early 14th-century scholar Ibn al-Bannāʼ. Demonstrates with examples the calculation of sums involving fractional numbers and square roots. Extensive marginal notes on a few leaves (p. 20-35). The first leaf is missing and the text ends abruptly. Several leaves have restored outer margins. Pages 189-194 missing text because of conservation after water damage.
- Ms. codex.
Title supplied by cataloger.
Pagination: 159 leaves; [1-55, i-ii, 56-151, i-ii, 152-165, 164-273, 174-179, 280-312], later pagination in blue ink, upper center. Catchwords on each leaf, lower left verso, many obscured by past water damage.
Layout: Written in 24 long lines.
Script: Written in maghribi script in brown ink; pointed. Headings in larger script.
Decoration: Calculations in red ink. Numerous tables in red and brown ink.
Binding: Later red leather, blind-stamped with central mandorla, two pendants on the vertical axis, cornerpieces and frame; rebacked. Marbled doublure.
Origin: Written in northern Africa, probably Morocco, in the 15th or 16th century.
Watermarks: Laid European paper with grape watermark.
- Local notes:
- Lawrence J. Schoenberg & Barbara Brizdle Manuscript Initiative.
- Penn Provenance:
- Sold by Sam Fogg Ltd. (London) to Lawrence J. Schoenberg, July 2004.
Deposit by Lawrence J. Schoenberg and Barbara Brizdle, 2013.
- Cited in:
- Described in Transformation of knowledge: early manuscripts from the collection of Lawrence J. Schoenberg (London: Paul Holberton, 2006), p. 39 (LJS 481).
- Cited as:
- Oversize LJS 481.
- ابن البناء، احمد بن محمد، 1256؟-1321؟
- Ibn al-Bannāʼ, Aḥmad ibn Muḥammad, 1256?-1321? Talkhīṣ aʻmāl al-ḥisāb. Selections.
ابن البناء، احمد بن محمد، 1256؟-1321؟ تلخيص اعمال الحساب. Selections.
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