Explore the effects of adding poles and zeros to the s-plane. View the real-time changes to the Bode, Nichols, Nyquist and Step Response plots.

Written by Brian Williams for MIT 6.302 Feedback Systems under the supervision of Dr. Kent Lundberg.


This program includes code from Sandy Anderson's complex number package v1.0.1 and NIST's matrix package JAMA v1.0.1.


This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

This page has been accessed at least several times since July 2004.
Maintained by Brian Williams and Dr. Kent Lundberg