The introduction of differential calculus in XVIIIth-century Spain. Tomàs Cerdà and the theory of fluxions Authors Joaquim Berenguer Clarià Keywords: Tomàs Cerdà, XVIIIth century, Fluxions, Differential Calculus Abstract Our research concerns eighteenth century Spain and is focused on the development and diffusion of Differential and Integral Calculus. Our thesis focus on the reception of this new calculus into Spain, through Tomàs Cerdà (1715-1791). Cerdà was a Catalan Jesuit devoted to the teaching of mathematics in Barcelona and Madrid, in the mid-eighteenth century, and who published several mathematical texts and prepared many others for future publication. One of these manuscripts is a treatise on Differential Calculus, the Tratado de Fluxiones, which is an adaptation of another book, The Doctrine and Application of Fluxions (1750) by an English mathematician, Thomas Simpson (1710-1761). Thus, the aim of this paper centers on the analysis of the role of Cerdà in the introduction of Differential and Integral Calculus in eighteenth Century Spain, by means his Tratado de Fluxiones.Keywords: Tomàs Cerdà, XVIIIth century, Fluxions, Differential Calculus Downloads PDF (Català) Issue Vol. 11 (2018) Section Articles License The intellectual property of articles belongs to the respective authors.On submitting articles for publication to the journal Actes d’Història de la Ciència i de la Tècnica, authors accept the following terms:Authors assign to Societat Catalana d’Història de la Ciència i de la Tècnica (a subsidiary of Institut d’Estudis Catalans) the rights of reproduction, communication to the public and distribution of the articles submitted for publication to Actes d’Història de la Ciència i de la Tècnica.Authors answer to Societat Catalana d’Història de la Ciència i de la Tècnica (SCHCT) for the authorship and originality of submitted articles.Authors are responsible for obtaining permission for the reproduction of all graphic material included in articles.SCHCT declines all liability for the possible infringement of intellectual property rights by authors.The contents published in the journal, unless otherwise stated in the text or in the graphic material, are subject to a Creative Commons Attribution-NonCommercial-NoDerivs (by-nc-nd) 3.0 Spain licence, the complete text of which may be found at http://creativecommons.org/licenses/by-nc-nd/3.0/es/deed.en. Consequently, the general public is authorised to reproduce, distribute and communicate the work, provided that its authorship and the body publishing it are acknowledged, and that no commercial use and no derivative works are made of it.Actes d’Història de la Ciència i de la Tècnica is not responsible for the ideas and opinions expressed by the authors of the published articles.