test RazorThinExponentialDiskPotential's PotentialError
test RazorThinExponentialDiskPotential's PotentialError

followthesheep/galpy,followthesheep/galpy,jobovy/galpy,jobovy/galpy,followthesheep/galpy,jobovy/galpy,jobovy/galpy,followthesheep/galpy