Information: - In mathematics, a dynamical system is a system in which a function describes the time dependence of a point in a geometrical space. Examples include the mathematical models that describe the swinging of a clock pendulum, the flow of water in a pipe, and the number of fish each springtime in a lake. - Claire Jennifer Tomlin ( born 1969 Southampton , England ) is a British researcher in hybrid systems , distributed and decentralized optimization and control theory . - Control theory is an engineering method that deals with the behavior of dynamical systems with inputs, and how their behavior is modified by feedback. The usual objective of control theory is to control a system, often called the "plant", so its output follows a desired control signal, called the "reference", which may be a fixed or changing value. To do this a "controller" is designed, which monitors the output and compares it with the reference. The difference between actual and desired output, called the "error" signal, is applied as feedback to the input of the system, to bring the actual output closer to the reference. Some topics studied in control theory are stability (whether the output will converge to the reference value or oscillate about it), controllability and observability. - In control theory, observability is a measure for how well internal states of a system can be inferred by knowledge of its external outputs. The observability and controllability of a system are mathematical duals. The concept of observability was introduced by American-Hungarian engineer Rudolf E. Kalman for linear dynamic systems. 'claire j. tomlin' is related to which object entity through the relation of 'occupation'? Choices: - clock - engineer - engineering
engineer