This is just here as a test because I lose it
Term information
definition
Model that mathematically describes some entity using a nonlinear system. "A nonlinear system is a system which is not linear, that is, a system which does not satisfy the superposition principle, or whose output is not directly proportional to its input. Less technically, a nonlinear system is any problem where the variable(s) to be solved for cannot be written as a linear combination of independent components. " source: http://en.wikipedia.org/wiki/Nonlinear_system