Nova Methodus pro Maximis et Minimis
New Method for Maxima and Minima
"Nova Methodus pro Maximis et Minimis" is the first published work on the subject of calculus, although Newton's earliest manuscript works on calculus date from 1665-1666, De analysi per aequationes numero terminorum infinitas from 1669 and Method of Fluxions from 1671 were created earlier. It was published by Gottfried Leibniz in the Acta Eruditorum in October 1684.Wikipedia →
Translations

A Source Book in Mathematics
tr. David Eugene Smith, Vera Sanford, Wooster Woodruff Beman, Martin A. Nordgaard, Anna Savitsky, Jekuthiel Ginsburg, E. T. Bell, Florian Cajori, Laura Guggenbuhl, Ralph G. Archibald, D. H. Lehmer, Thomas Freeman Cope, J. D. Tamarkin, L. Leland Locke, Mark Kormes, Nevin C. Fisk, R. B. McClenon, Edward E. Whitford, Eva M. Sanford, W. H. Langdon, Helen M. Walker, Mary M. Taylor, Louis Weisner, Albert A. Bennett, C. Raymond Adams, Lao G. Simons, Frances Marguerite Clarke, Nathan Altshiller-Court, Morris Miller Slotnick, Roger A. Johnson, J. S. Turner, Henry P. Manning, Joseph Seidlin, Marcia L. Latham, Arnold Emch, James Singer, Henry S. White, Raymond Clare Archibald, Herbert P. Evans, E. Amelotti, Henry A. Ruger, Julian L. C. A. Gys, Evelyn Walker, Lincoln La Paz, H. Bateman, J. P. Kormes, D. Darkow · Dover · United States · 1959
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