The sampling of the states :math:`\mathbf{x}` can be provided explicitly or in
the form of hypercubes, explicit or sampled according to common distributions,
-or using Latin Hypercube Sampling (LHS).
+or using Latin Hypercube Sampling (LHS). Depending on the method, the sample
+will be included in the domain described by its bounds, or will be descriptive
+of the unbounded domain of state variables.
These possible keywords are:
