Linear control is a research area that focuses on designing mathematical algorithms and methods to control the behavior of linear systems. These systems are characterized by having linear dynamics, meaning that the relationship between inputs and outputs can be described by linear equations. Linear control techniques are used in a wide range of applications, including robotics, aerospace engineering, automotive systems, and industrial automation. The goal of linear control is to design controllers that can stabilize, track reference signals, and reject disturbances in a system, ensuring stable and optimal performance. Key concepts in linear control include feedback control, state-space representation, stability analysis, and optimal control theory.