Stewart-Schafer

The Stewart-Schafer criterion is a mathematical method used in engineering, particularly in control system stability analysis. It helps determine whether a system will behave predictably when subjected to various inputs or disturbances. By examining the system's characteristic equation (a mathematical expression related to the system's behavior), it assesses how the system's stability changes as certain parameters vary. Essentially, it provides a systematic way to predict whether a control system will remain stable and perform correctly under different conditions, ensuring safe and reliable operation in real-world applications like automation and aerospace.