The British surveyor turned mathematician John Landen (1719-1790) made several noteworthy contributions to mathematics. Inventive and creative, he also developed theories that were controversial; such was his “residual analysis,” a computational system based on algebra and geometry, to circumvent calculus. Landen published a book explaining his theory in 1758 titled A Discourse Concerning the Residual Analysis.
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The name and address of a previous owner of this book is written on the inside cover: “M. Liouville, Rue Sorbonne, No. 7.” Could this “Monsieur Liouville” be the French mathematician Joseph Liouville (1809-1882)? It is known that this book was obtained from France.
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Landen explained his theory in the first few page of the “Preface”.
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In 1764, Landen published his The Residual Analysis, A New Branch of the Algebraic Art.
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In the Preface” of this book he also justified his method as an alternate to the calculus.
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These images were obtained through the courtesy of ETH-Bibliothek Zürich. The book may be viewed in its entirety at e-rara: http://dx.doi.org/10.3931/e-rara-10354
Index to Mathematical Treasures