DStabilityConditions

DStabilityConditions[eqn, x[t], t]

DStabilityConditions[{eqn1, eqn2, …}, {x1[t], x2[t], …}, t]

DStabilityConditions[{eqn1, eqn2, …}, {x1[t], x2[t], …}, t, {pnt1, pnt2, …}]