EULER, LEONHARD.

De Minimis oscillationibus Corporum tam rigidorum qvam flexibilium. Methodus nova et facilis. (On the smallest oscillations of rigid and flexible bodies. A new and easy method.)

(Petropoli, St. Petersburg, Typis Academiae, 1740). 4to. No wrappers. In: "Classes Prima continens Mathematica. Commentarii Academiae Scientiarum Imperialis Petropolitanae", Tomus VII ad Annum 1735, &..... Euler's paper: pp. 99-122 a. 2 engraved plates. Wide-margined, clean.

First printing of Euler's first paper on vibrating bars. Euler here solves the partial differential equation for a forced harmonic oscillator and notices the resonnance phenomenon. - Enestroem E40.

Order-nr.: 50924