Investigation of functions from a given condition of differentials
According to Jacobi, a treatise with this title was read to the Berlin Academy on March 8, 1759. According to St. Petersburg Academy records, it was presented to that Academy on December 1, 1760.
Euler integrates many first-order partial differential equations with two independent variables.
Original Source Citation
Novi Commentarii academiae scientiarum Petropolitanae, Volume 9, pp. 170-212.
Opera Omnia Citation
Series 1, Volume 23, pp.1-41.