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Mathematics of currency and exchange: arithmetic at the end of the thirteenth century

Biggs, Norman (2009) Mathematics of currency and exchange: arithmetic at the end of the thirteenth century. Bshm Bulletin: Journal of the British Society for the History of Mathematics, 24 (2). pp. 67-77. ISSN 1749-8430

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Abstract

In western Europe, a sophisticated banking system for the purposes of international trade had evolved by the end of the thirteenth century. It was based upon the 'bill of exchange', which enabled an exporter of goods to receive payment in his own currency, by means of a balancing payment made in the currency of the importer. This paper discusses the arithmetical tools that were available for use in accounting for transactions made in different currencies. It is argued that algorithmic methods based on the Hindu-Arabic numerals were used at the higher levels of banking, in order to prepare tables of foreign exchange such as those collected by the Florentine banker, Francesco Pegolotti. On the other hand, the clerks who were responsible for routine book-keeping would have used a simple abacus and counters, and recorded their transactions in Roman numerals. The paper is based on a talk given to the BSHM at Gresham College on 25 April 2008.

Item Type: Article
Official URL: http://www.dcs.warwick.ac.uk/bshm/bulletin.html
Additional Information: © 2009 Taylor & Francis Ltd.
Library of Congress subject classification: Q Science > QA Mathematics
D History General and Old World > D History (General)
Sets: Departments > Mathematics
Rights: http://www.lse.ac.uk/library/usingTheLibrary/academicSupport/OA/depositYourResearch.aspx
Date Deposited: 30 Mar 2010 15:13
URL: http://eprints.lse.ac.uk/27613/

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