Perturbation Methods

Perturbation methods are techniques used to find approximate solutions to complex problems by starting from a simple, known solution and gradually introducing small changes, or "perturbations." This approach is helpful in fields like physics, engineering, and mathematics, where exact answers are difficult to obtain. Essentially, it allows researchers to analyze how small variations in a system influence its behavior and outcome, making it easier to understand and solve intricate problems. By studying these small adjustments, we can gain insights into the larger, more complicated systems they affect.