Leonhard Euler Eulero Leonardo - Methodus Inveniendi Lineas Curvas Maximi Minimive Proprietate Gaudentes...

<p>Prima edizione. <span style="font-variant: small-caps">Dibner</span> III; <span style="font-variant: small-caps;">Horblit </span>28; <span style="font-variant: small-caps;">Kline </span>377-379; <span style="font-variant: small-caps;">Struik </span>399-406. <span style="font-variant: small-caps;">Norman</span>, 731: &laquo;With the publication of this work, the calculus of variations came into being a new branch of mathematics. Euler was the first to formulate the principal problems of the calculus of variations and to create general methods for their solution [...]. He introduced (using different terminology) the concepts of function and variation, distinguished between problems of absolute and relative extrema, and deduced the differential equation that now bears his name&raquo;.</p>