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This is a reproduction of a book published before 1923. This book may have occasional imperfections
such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact,
or were introduced by the scanning process. We believe... Read Full Overview

This is a reproduction of a book published before 1923. This book may have occasional imperfections
such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact,
or were introduced by the scanning process. We believe... Read Full Overview

Una obra de matem ticas escrita por el matem tico y pol tico espa ol Jos Echegaray. El libro trata sobre el c lculo de variaciones y sus aplicaciones en la f sica y otras reas de las ciencias naturales. Es una obra influyente en el campo de las matem ticas y una fuente de... Read Full Overview