A national system of innovation has been defined as follows:
A cultural system may be defined as the interaction of different elements of culture.
Dynamical systems are defined over a single independent variable, usually thought of as time.
A coordinate system co-moving with the particle can be defined.
The neural system is defined by a possibly large number of neurons and their connections.
The coordinate system is defined from the viewpoint of the wave source, before and after scattering.
A closed system is defined to be one which does not communicate with the outside.
The system in question is arbitrary and can be defined as needed according to the application.
A thermodynamic system can be defined in terms of its states.
Thus, the international system is defined in terms of states.
