# Notes on Diffy Qs: Differential Equations for Engineers

- By: Jirí Lebl
- Publisher: Jirí Lebl
- Source: [Open Textbook Library](https://open.umn.edu/opentextbooks/textbooks/notes-on-diffy-qs-differential-equations-for-engineers)
- Licence: Attribution-NonCommercial-ShareAlike
- Online: https://www.jirka.org/diffyqs/html/diffyqs.html
- PDF: https://www.jirka.org/diffyqs/
- LaTeX: https://github.com/jirilebl/diffyqs

A one semester first course on differential equations, aimed at engineering students. Prerequisite for the course is the basic calculus sequence. This free online book (e-book in webspeak) should be usable as a stand-alone textbook or as a companion to a course using another book such as Edwards and Penney, Differential Equations and Boundary Value Problems: Computing and Modeling or Boyce and DiPrima, Elementary Differential Equations and Boundary Value Problems (section correspondence to these two is given). I developed and used these notes to teach Math 286/285 at the University of Illinois at Urbana-Champaign Sample Dirichlet problem solution (one is a 4-day-a-week, the other a 3-day-a-week semester-long course). I have also taught Math 20D at University of California, San Diego with these notes (a 3-day-a-week quarter-long course). There is enough material to run a 2-quarter course, and even perhaps a two semester course depending on lecturer speed.