This work undertakes a historical analysis of the development of two mathematical concepts-negative numbers and infinitely small quantitie, mainly in France and... » 

This work undertakes a historical analysis of the development of two mathematical concepts-negative numbers and infinitely small quantitie, mainly in France and Germany, but also in Britain and the different paths taken there. It not only discusses the history of the two concepts, but it also introduces a wealth of new knowledge and insights regarding their interrelation as necessary foundations for the emergence of the 19th century concept of analysis. «