Descriptor Systems

Just like time-delay systems, descriptor systems are also fully integrated into the Wolfram Language.

Obtain a descriptor state-space model from a differential-algebraic equation:
A descriptor state-space model constructed from the state, input, output, transmission and descriptor matrices:
A descriptor state-space model from an improper transfer-function model:
Construct a discrete-time descriptor system by specifying a sampling period:
Tight integration allows workflows for descriptor systems to match those of standard or proper systems:
If the descriptor matrix is nonsingular, the system can be converted to a standard state-space representation: