📒 Excerpt from Mémoires de l'Académie Impériale des Sciences, Belles-Lettres Et Arts de Lyon, 1853, Vol. 3: Classe des SciencesJe me propose d'établir ici des formules nouvelles relatives à la théorie des surfaces. J'en ferai l'application à quelques théo rèmes connus, que l'analyse démontre ordinairemement au moyen d'uxes particuliers ou de longs calculs et auxquels j'arrive d'une manière très - générale et qui me parait simple.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.