Root Locus and Frequency Response 1.0

Root Locus and Frequency Response, developed by Norman S. Nise, is an interactive learning and analysis tool for classical control systems. Designed for students, educators, and practicing engineers, it helps users build intuition and speed up design by connecting time-domain performance with frequency-domain behavior in a clear, visual way.

Key capabilities:

• Root locus exploration: Visualize pole–zero locations, track how closed-loop poles move with gain, and immediately see the impact on stability and transient response.
• Frequency response analysis: Generate Bode, Nyquist, and Nichols plots with automatic calculation of gain and phase margins, crossover frequencies, and bandwidth.
• Time-domain responses: View step, impulse, and tracking performance; evaluate overshoot, settling time, rise time, and steady-state error.
• Controller design: Experiment with PID, lead, lag, and lead–lag compensators; adjust parameters interactively and observe effects across linked plots.
• Parameter sensitivity: Use sliders to vary plant or controller parameters and see real-time updates across both root locus and frequency-response views.
• Education-friendly workflow: Clear visuals, annotations, and guided examples support lectures, labs, and self-study.

By tightly linking root locus and frequency-response methods, the software makes control trade-offs tangible—helping users move from “plot reading” to confident design. It is well suited as a companion for coursework or as a quick design aid for classical control problems.

Root Locus and Frequency Response is developed by Norman S. Nise. The most popular version of this product among our users is 1.0. The name of the program executable file is RootLocus.exe.

You can check Kingo Android ROOT, FilterLab, EZ Smart Response and other related programs like SynRTA at the "download" section.