It generates a moving particle that has Brownian motion. You need to determine the proper values of parameters associated with the power spectrum the spring-mass-damper system. As a result, it provides the animation of the particle as well as its trace.-It generates a moving particle that has Brownian motion. You need to determine the proper values of parameters associated with the power spectrum　the spring-mass-damper system. As a result, it provides the animation of the particle as well as its trace.