Blurb::
Discrete state variables, each defined by a set of permissible real numbers
Description::
Discrete state variables defined by a set of permissible real numbers.

The details of how to specify this discrete variable are located on the 
\ref topic-discrete_variables page.

See the \ref topic-state_variables page for details on the behavior of state
variables.

Topics::	discrete_variables, state_variables
Examples::
Theory::
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