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The record is made up of Ff. 1r-2v. It was created in 18th century. It was written in Arabic. The original is part of the British Library: Oriental Manuscripts.

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Anonymous treatise or fragment of a treatise on multipication. The text treats of two methods (مسلكان) of a type of multiplication it refers to as ضرب التوشيح.

Begins (f. 1r, lines 1-3):

وضرب التوشيح وهو أن تضع المضروب في اليمين والمضروب فيه في اليسار متحاذية المراتب بحيث يكون الآحاد

تحت العشرات وهي تحت المئات ويكون بينهما فرجة ليتسع العمل فاضرب أعلى مراتب المضروب في كل واحد واحد

من مراتب المضروب فيه ...

Ends (f. 2v, lines 5-7):

المسلك الثاني ضرب الأصفار وهو أن تجمع مراتب المضروبين ويلقي الواحد

عن المجموع وترتسم بعدة الباقي أصفارًا فتضرب أولًا أول المضروب في أول

المضروب فيه وتضع آحاد الحاصل فوق أول الأصفار وعشراته إن كانت له تلك

Extent and format
Ff. 1r-2v
It is part of
Written in
Arabic in Arabic script
Manuscript item

Archive information for this record

Access & Reference

Original held at
British Library: Oriental Manuscripts
Access conditions


Archive reference
IO Islamic 1362, ff 1r-2v

History of this record

18th century (CE, Gregorian)

Related material

Finding aids

Loth, Otto, A Catalogue of the Arabic Manuscripts in the Library of the India Office The department of the British Government to which the Government of India reported between 1858 and 1947. The successor to the Court of Directors. (London: Printed by order of the Secretary of State for India in Council, 1877), Item 761, p. 221

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Anonymous treatise on multiplication, British Library: Oriental Manuscripts, IO Islamic 1362, ff 1r-2v, in Qatar Digital Library <> [accessed 15 November 2019]

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