Ce livre présente une théorie complète des équations aux dérivées partielles du premier ordre. L'auteur aborde les concepts de base, tels que les solutions générales et particulières, les équations caractéristiques et les intégrales premières. Les applications incluent des problèmes de physique, d'ingénierie et de finance. Des exemples concrets sont proposés tout au long du livre afin d'illustrer les concepts théoriques. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.