# Definitions > [!NOTE] Definition (Mathematical Model) > A mathematical model is a set of mathematical [[Equation|equations]] that provide an adequate description of a [[Physical System|physical system]] ([[@witelskiMethodsMathematicalModelling2015|Witelski, 2015]]). **Examples**: [[SEIR Model]]; [[RLC Circuit Model]]; # Properties See [[SQM Classification of Mathematical Models]] & [[Modelling Cycle]].