[Ḥaṭṭ al-niqāb ʻan wujūh aʻmāl al-ḥisāb].
[حط النقاب عن وجوه اعمال الحساب].

Format:

Book

Manuscript

Author/Creator:

Ibn al-Qunfudh, Aḥmad ibn Ḥusayn, -1406 or 1407.

Contributor:

Lawrence J. Schoenberg Collection (University of Pennsylvania)

ابن البناء، احمد بن محمد، 1256؟-1321؟

Language:

Arabic

Subjects (All):

Arithmetic.

Ibn al-Bannāʾ, Aḥmad ibn Muḥammad, 1256?-1321? Talkhīṣ aʻmāl al-ḥisāb.

Arithmetic--Early works to 1800.

Mathematics, Arab--Early works to 1800.

Mathematics, Arab.

Genre:

Manuscripts, Arabic -- 15th century.

Manuscripts, Arabic -- 16th century.

codices (bound manuscripts)

commentaries

Early works.

Penn Provenance:

Sold by Sam Fogg Ltd. (London) to Lawrence J. Schoenberg, July 2004.

Deposit by Lawrence J. Schoenberg and Barbara Brizdle, 2013.

Gift of Barbara Brizdle Schoenberg, 2021.

Physical Description:

159 leaves : paper ; 268 x 195 (205 x 135) mm bound to 274 x 208 mm

Place of Publication:

[Morocco?], [between 1400 and 1599?]

Language Note:

Arabic.

Summary:

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.

Notes:

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.

Cited in:

Described in Transformation of knowledge: early manuscripts from the collection of Lawrence J. Schoenberg (London: Paul Holberton, 2006), p. 39 (LJS 481).

Publications about:

Oaks, Jeffrey A., "The Medieval Arabic Zero," in Peter Gobets and Robert Lawrence Kuhn, eds., The Origin and Significance of Zero: An Interdisciplinary Perspective (Boston: Brill, 2024), p. 256.

Cited as:

Aḥmad ibn Ḥusayn ibn al-Qunfudh, Ḥaṭṭ al-niqāb ʻan wujūh aʻmāl al-ḥisāb (Oversize LJS 481). Kislak Center for Special Collections, Rare Books and Manuscripts, University of Pennsylvania.

Contains:

Ibn al-Bannāʼ, Aḥmad ibn Muḥammad, 1256?-1321? Talkhīṣ aʻmāl al-ḥisāb. Selections.

ابن البناء، احمد بن محمد، 1256؟-1321؟ تلخيص اعمال الحساب. Selections.

OCLC:

844036954

Online:

The Lawrence J. Schoenberg and Barbara Brizdle Manuscript Initiative Fund Home Page