Institutiones calculi integralis (Foundations of integral calculus) is a three-volume textbook written by Leonhard Euler and published in 1768. It was on the subject of integral calculus and contained many of Euler's discoveries about differential equations. It was written after "Institutiones calculi differentialis" (1755) and "Introductio in analysin infinitorum" (1748)
See also Institutiones calculi differentialis
External links Full text available from Archive.org. Full text (1768) available from Google Books. [1] provides a complete English translation of Euler's Institutiones calculi integralis by Ian Bruce. German translation Vollständige Anleitung zur Integralrechnung (1828) available from e-rara.ch.