B1. The Class MmxDevice

The class MmxDevice is derived from Model and is a pure virtual class which serves only as a base class for the real device classes. It defines the basic member parameters and provides standardized communication means for the real devices. Among others, the following interface parameters are available: the partial Jacobian matrix (stamp) Y which must be calculated by the evaluate method of the real device in conjunction with the partial right-hand-side rhs. To do this, the evaluate method needs the partial solution vector x, the partial old solution vector xold, and information about which quantity is really solved for as found in solv. Furthermore, the current simulation time t and the size of the last time-step dt are available.

Inside a circuit each device is defined by the number of terminals by which the device is connectable to the circuit. These terminals can be voltage or temperature controlled.