numerical-mooc/numerical-mooc — pull request #47 by labarba (2014-09-18 01:34:42+00:00)
Title: Phugoid dev Lesson 4

Lesson 4 is now ready for release. It uses the paper-airplane parameters to demonstrate RK2 and leapfrog methods, and ends with a little quandary: leapfrog can misbehave sometimes!