Prof. Arthur Mattuck, of the Dept. of Mathematics at MIT, describes the usefulness of a technique for taking an integration problem into the complex plane by exploiting Euler's Formula.

This clip was taken from the Prof. Mattuck's class "18.03 Differential Equations" and can be found at:
http://ocw.mit.edu/18-03S06

The complete version of this specific lecture can be viewed at:
   • Lec 6 | MIT 18.03 Differential Equati...