Add analytical answer to this test.
Add analytical answer to this test.

Gjacquenot/simbody,elkingtonmcb/simbody,scamille/simbody,robojukie/simbody,Gjacquenot/simbody,robojukie/simbody,elkingtonmcb/simbody,chrisdembia/simbody,elen4/simbody,scamille/simbody,simbody/simbody,simbody/simbody,Gjacquenot/simbody,robojukie/simbody,elen4/simbody,chrisdembia/simbody,chrisdembia/simbody,scamille/simbody,elkingtonmcb/simbody