RobotLocomotion/drake — pull request #397 by RussTedrake (2014-09-13 09:19:34+00:00)
Title: set default simulink parameter to ode45 for continuous models

one of the students in class had their simulink preferences set up so that ode3 was the default solver. naturally, that didn't work very well for stiff systems (like the planar hopper).