So a model is not reality but should be good enough to be useful. Mathematical Association of America P. Still not perfect did we consider wasted space because we could not pack things neatly etc but better.
One might amend the model to make the dependence depend on more terms and to.
The mathematical model of Eqs. Representation image copy miniature dummy replica. The mathematical model of Eqs. The second is to translate all the essential properties and behavior of the real system into a meaningful and representative mathematical form.