CtrlLAB is a group of MATLAB functions which provide graphical interface to perform feedback system analysis and design tasks.

The facilities provided by CtrlLAB are:
a) model entering, including SIMULINK modeling
b) model display
c) system state space realisation
d) model reduction using different algorithms
e) system analysis in frequency, complex and time domain
f) graphical display and figure editing and manipulation
g) a matrix displayer and editor
h) PID tuning and displaying facilities
i) a great many controller design procedures are implemented

CtrlLAB 3.0 is designed exclusively for use MATLAB version 5 and over. Some of the advanced facilities for MATLAB 5.2 have been reflected in CtrlLAB 3.0. CtrlLAB 3.0 requires the Control System Toolbox and Simulink for many of it's functions. For robust control problems, the Robust Control Toolbox is required.